#include using namespace std; using ll = long long; template using vec = vector; #define BE(x) x.begin(), x.end() const ll max_n = 1000000; vec inv(max_n+1,1), fact(max_n+1,1), finv(max_n+1,1); bool pre = true; ll comb (ll n, ll k, ll m = 100000007) { if (pre) { for (ll i = 2; i <= max_n; i++) { inv [i] = m-inv[m%i]*(m/i)%m; // inverse for i fact[i] = fact[i-1]*i%m; // i! finv[i] = finv[i-1]*inv[i]%m; // inverse for i! } pre = false; } if (n> q; for (int _ = 0; _ < q; _++) { string s; cin >> s; char c = s[0]; string sn, sk; s.erase(0,2); bool f = false; while (true) { if (!f) { if (s[0] == ',') f = true; else sn += s[0]; s.erase(0,1); } else { if (s[0] == ')') break; sk += s[0]; s.erase(0,1); } } ll n = stoll(sn), k = stoll(sk); ll ans; if (c == 'C') { ans = comb(n, k, mod); } else if (c == 'P') { ans = comb(n, k, mod)*fact[k]%mod; } else { ans = comb(n+k-1, k, mod); } cout << ans << '\n'; } }