import sys

from itertools import permutations

count = int(sys.stdin.readline())

groups = []
for i in range(count):
    args = [int(arg) for arg in sys.stdin.readline().split()]
    n = max(args)
    rest = [i for i in args if i != n]
    groups.append((n, rest[0], rest[1]))

def is_perm(n, a, b):

    for start in permutations(a, len(a)):

        for end in permutations(b, len(b)):

            s = ""
            for char in start:
                s += str(char)
            for char in end:
                s += str(char)

            if s == n:
                return True

    return False

for perm in permutations(["a", "b"], 3):
    print(perm)

for bats in groups:
    n = bats[0]
    a = bats[1]
    b = bats[2]

    if a * b != n:
        sys.stdout.write("NO" + "\n")
        continue

    l = len(str(n))
    half = l / 2
    if l % 2 != 0:
        sys.stdout.write("NO" + "\n")
        continue

    if len(str(a)) != half or len(str(b)) != half:
        sys.stdout.write("NO" + "\n")
        continue

    if a % 10 == 0 and b % 10 == 0:
        sys.stdout.write("NO" + "\n")
        continue

    if not is_perm(str(n), str(a), str(b)):
        sys.stdout.write("NO" + "\n")
        continue

    sys.stdout.write("YES" + "\n")