from sys import stdin, stdout input = lambda: stdin.readline().rstrip() write = stdout.write def main(): print(0, 0) x0 = int(input()) if x0 == 0: return print(1000000000, 0) x1 = int(input()) if x1 == 0: return y = (x0 + x1 - 1000000000) // 2 x = x0 - y print(x, y) main()