diff --git a/CP/January Challenge 2018/kconcat.py b/CP/January Challenge 2018/kconcat.py
new file mode 100644
index 0000000..f1df254
--- /dev/null
+++ b/CP/January Challenge 2018/kconcat.py	
@@ -0,0 +1,29 @@
+'''
+listB.sort(reverse=True) # listB gets modified
+listC = sorted(listB, reverse=True) # listB remains untouched
+'''
+
+
+for _ in range(int(input())):
+    n = int(input())
+    b = []
+    for __ in range(n):
+        a = map(int,raw_input().split())
+        b.append(sorted(a))
+    su = b[n-1][-1]
+    k1=su
+
+    for x in range(n-2,-1,-1):
+        flag = 0
+        for y in range(n-1,-1,-1):
+            if(b[x][y]<k1):
+                k1=b[x][y]
+                su+=k1
+                flag = 1
+                break
+        if(flag == 0):
+            break
+    if(flag == 0):
+        print("-1")
+    else :
+        print(su)
diff --git a/CP/January Challenge 2018/maxscore.py b/CP/January Challenge 2018/maxscore.py
index 11f5948..f1df254 100644
--- a/CP/January Challenge 2018/maxscore.py	
+++ b/CP/January Challenge 2018/maxscore.py	
@@ -1,2 +1,29 @@
+'''
+listB.sort(reverse=True) # listB gets modified
+listC = sorted(listB, reverse=True) # listB remains untouched
+'''
+
+
 for _ in range(int(input())):
-     
+    n = int(input())
+    b = []
+    for __ in range(n):
+        a = map(int,raw_input().split())
+        b.append(sorted(a))
+    su = b[n-1][-1]
+    k1=su
+
+    for x in range(n-2,-1,-1):
+        flag = 0
+        for y in range(n-1,-1,-1):
+            if(b[x][y]<k1):
+                k1=b[x][y]
+                su+=k1
+                flag = 1
+                break
+        if(flag == 0):
+            break
+    if(flag == 0):
+        print("-1")
+    else :
+        print(su)