#include using namespace std; using i64 = int64_t; using vi = vector; using vvi = vector; constexpr i64 MOD = 1e9 + 7; i64 modpow(i64 a, i64 n, i64 mod) { if (n == 0) return 1; if (n % 2 == 0) { i64 t = modpow(a, n / 2, mod); return t * t % mod; } return a * modpow(a, n - 1, mod) % mod; } i64 modinv(i64 a, i64 mod) { // mod is prime return modpow(a, mod - 2, mod); } struct Combination { const int MAX_N = 1 << 21; vi fact = vi(MAX_N); vi factinv = vi(MAX_N); Combination() { fact[0] = 1; for (int i = 1; i < MAX_N; i++) { fact[i] = fact[i - 1] * i % MOD; } factinv[MAX_N - 1] = modinv(fact[MAX_N - 1], MOD); for (int i = MAX_N - 2; i >= 0; i--) { factinv[i] = factinv[i + 1] * (i + 1) % MOD; } } i64 ncr(i64 n, i64 r) { if (r < 0 || r > n) return 0; return fact[n] * factinv[r] % MOD * factinv[n - r] % MOD; } i64 npr(i64 n, i64 r) { if (r < 0 || r > n) return 0; return fact[n] * factinv[n - r] % MOD; } i64 nhr(i64 n, i64 r) { if (n == 0 && r == 0) return 1; return ncr(n + r - 1, r); } }; int main() { ios::sync_with_stdio(false); cin.tie(nullptr); cout.tie(nullptr); int t; cin >> t; Combination comb; while (t--) { char c; i64 n, k; cin >> c; if (c == 'C') { cin >> c >> n >> c >> k >> c; cout << comb.ncr(n, k) << '\n'; } else if (c == 'P') { cin >> c >> n >> c >> k >> c; cout << comb.npr(n, k) << '\n'; } else { cin >> c >> n >> c >> k >> c; cout << comb.nhr(n, k) << '\n'; } } }