row,col = [ int(x) for x in input().split() ] #高阶的学员代码，写出来的代码很神奇的amazing 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) ] a = [ [ a[x][y] + b[x][y] for y in range(col) ] for x in range(row) ] for row in a: print(*row)