백준 2738번
제목 : 행렬 덧셈
# Python3
n, m = map(int, input().split())
a, b = [], []
for _ in range(n):
a.append(list(map(int, input().split())))
for _ in range(n):
b.append(list(map(int, input().split())))
for i in range(n):
for j in range(m):
print(a[i][j] + b[i][j], end=' ')
print()