백준 2740번 파이썬
a=[] b=[] n,m=map(int,input().split()) for _ in range(n): a.append(list(map(int, input().split()))) m,k=map(int,input().split()) for r in range(m): b.append(list(map(int, input().split()))) c=[[0]*k for x in range(n)] for i in range(n): for j in range(k): for o in range(m): c[i][j]+=a[i][o]*b[o][j] for p in range(n): for q in range(k): print(c[p][q], end=" ") print()