import re
import sys

content = input()
pattern = r'^(\d+)$'
result = re.match(pattern, content)

if not result:
    sys.exit("format error.")

T = int(content)

if not (1 <= T and T <= 500):
    sys.exit("T")

for t in range(T):
    content = input()
    pattern = r'^(\d+) (\d+)$'
    result = re.match(pattern, content)

    if not result:
        sys.exit("format error.")

    N, M = map(int, content.split())

    if not (1 <= N and N <= 500):
        sys.exit("N")
    if not (1 <= M and M <= 500):
        sys.exit("M")