imei = str(input ("Give me the imei number: ")) odd_imei = 0 even_imei = 0 last_digit =0
#calculate odd number for a in range (0, 14, 2): a_imei = int(imei[a]) odd_imei += a_imei
#calculate even number for b in range (1, 14, 2): b_imei = int(imei[b])*2 if b_imei > 9: str_imei = str(b_imei) c_imei = int(str_imei[0]) d_imei = int(str_imei[1]) b_imei = c_imei + d_imei even_imei += b_imei
#calculate last digit for x in range (0, 10, 1): last_digit = (odd_imei + even_imei + x)%10 if last_digit%10 == 0: print("the last digit is " + str(x)) print("IMEI is " + str(imei)+ str(x))