row,col = [ int(x) for x in input().split() ] #高阶的学员代码，神奇 a =[ [ int(x) for x in input().split() ] for x in range(row) ] b =[ [ int(x) for x in input().split() ] for x in range(row) ] for x in range(row): for y in range(col): a[x][y] = a[x][y] + b[x][y] # x-x ,y -y for row in a: print(*row)