m,n=map(int,input().split())
matrix1=[list(map(int,input().split())) for _ in range(m)]
matrix2=[list(map(int,input().split())) for _ in range(n)]
for i in range(m):
    row=[]
for j in range(n):
    row.append(matrix1[i][j]+matrix2[i][j])
    print(*row)