def count_digits(s):
    d = dict()
    for c in "0987654321":
        d[c] = 0
    for c in s:
        d[c] += 1
    return d
    

def compare_d(d: dict[str, int], e):
    for key, item in d.items():
        if e[key] != item:
            return False
    return True


def solve():
    n,a,b = map(int, input().split())
    if n != a * b:
        print("NO")
        return
    sn, sa, sb =  str(n), str(a), str(b)
    k = len(sa)
    if k != len(sb):
        print("NO")
        return
    if 2*k != len(sn):
        print("NO")
        return
    
    if sa[-1] == "0" and sb[-1] == "0":
        print("NO")
        return
    
    dn = count_digits(sn)
    dab = count_digits(sa + sb)
    
    if compare_d(dn, dab):
        print("YES")
        return
    print("NO")


if __name__ == "__main__":
    t = int(input())
    for _ in range(t):
        solve()