#include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include using namespace std; #define FOR(i,m,n) for(int i=(m);i<(n);++i) #define REP(i,n) FOR(i,0,n) #define ALL(v) (v).begin(),(v).end() const int INF = 0x3f3f3f3f; const long long LINF = 0x3f3f3f3f3f3f3f3fLL; /*----------------------------------------*/ const int MOD = 1000000007; pair ext_gcd(long long a, long long b) { if (b == 0) return {1, 0}; pair pr = ext_gcd(b, a % b); return {pr.second, pr.first - a / b * pr.second}; } long long mod_inv(long long a) { if (__gcd(a, (long long)MOD) != 1) return 0; pair pr = ext_gcd(a, MOD); return (pr.first + MOD) % MOD; } const int MAX = 10000000; long long fact[MAX + 1], fact_inv[MAX + 1]; void nCk_init(int num = MAX) { fact[0] = 1; FOR(i, 1, MAX + 1) fact[i] = fact[i - 1] * i % MOD; fact_inv[MAX] = mod_inv(fact[MAX]); for (int i = MAX; i > 0; --i) fact_inv[i - 1] = fact_inv[i] * i % MOD; } inline long long nCk(int n, int k) { if (n < 0 || n < k || k < 0) return 0; return fact[n] * (fact_inv[k] * fact_inv[n - k] % MOD) % MOD; } inline long long nPk(int n, int k) { if (n < 0 || n < k || k < 0) return 0; return fact[n] * fact_inv[n - k] % MOD; } inline long long nHk(int n, int k) { if (n < 0 || k < 0) return 0; return nCk(n + k - 1, k); } int main() { cin.tie(0); ios::sync_with_stdio(false); // freopen("input.txt", "r", stdin); nCk_init(1000000); int t; cin >> t; while (t--) { string s; cin >> s; string n = ""; int idx = 2; for (;; ++idx) { char c = s[idx]; if (c == ',') break; n += c; } string k = s.substr(idx + 1); if (s[0] == 'C') cout << nCk(stoi(n), stoi(k)); else if (s[0] == 'P') cout << nPk(stoi(n), stoi(k)); else cout << nHk(stoi(n), stoi(k)); cout << '\n'; } return 0; }