Contest1470/1470E2.py

n = int(input().strip())
for i in range(n):
    head, leg = map(int, input().strip().split())
    flag = False
    for chick in range(head + 1):
        hair = n - chick
        if chick + hair == head and chick * 2 + hair * 4 == leg:
            print(chick, hair)
            flag = True
            break
    if not flag:
        print("No answer")