#define MOD 1000000007

#include <cstdio>
#include <iostream>
#include <vector>
using namespace std;

long pow(long a, long b) {
	if (b == 0) return 1;
	long c = pow(a, b / 2);
	if (b % 2) c = a * c % MOD * c % MOD;
	else c = c * c % MOD;
	return c;
}

int main() {
	int T;
	scanf("%d%*c", &T);
	vector<long> a(2000000, 1), b(2000000, 1);
	for (int i = 1; i < 2000000; i++) {
		a[i] = a[i - 1] * i % MOD;
		b[i] = pow(a[i], MOD - 2);
	}
	for (int i = 0; i < T; i++) {
		char c;
		long N, K;
		scanf("%c(%ld,%ld)%*c", &c, &N, &K);
		if (c == 'C') {
			if (N < K) cout << 0;
			else cout << a[N] * b[N - K] % MOD * b[K] % MOD;
		}
		else if (c == 'P') {
			if (N < K) cout << 0;
			else cout << a[N] * b[N - K] % MOD;
		}
		else {
			if (!N) {
				if (!K) cout << 1;
				else cout << 0;
			}
			else cout << a[N + K - 1] * b[N - 1] % MOD * b[K] % MOD << endl;
		}
		cout << endl;
	}
}