import sys


def input(): return sys.stdin.readline().rstrip()


def main():
    T = int(input())

    MOD = 10**9 + 7

    MAX = 10**6
    fact = [1] * (2*MAX)

    for i in range(1, 2*MAX):
        fact[i] = i * fact[i-1] % MOD

    for i in range(T):
        S = input()
        tp = S[0]
        N, K = map(int, S[2:-1].split(','))

        if tp == 'C':
            if N < K:
                print(0)
            else:
                print(fact[N]*pow(fact[K]*fact[N-K], -1, MOD) % MOD)
        elif tp == 'P':
            if N < K:
                print(0)
            else:
                print(fact[N]*pow(fact[N-K], -1, MOD) % MOD)
        else:
            if N == 0:
                if K == 0:
                    print(1)
                else:
                    print(0)
            else:
                print(fact[N+K-1]*pow(fact[N-1]*fact[K], -1, MOD) % MOD)


if __name__ == '__main__':
    main()