func_code_string: #include <bits/stdc++.h>   using namespace std;   const int N = 2E5 + 10;   long long jc[15];   int main() {     jc[0] = 1;     for (int i = 1; i <= 14; ++i) jc[i] = jc[i - 1] * i;     int n, m;     cin >> n >> m;     int z = max(n - 13, 1);     long long ad = 0, p = jc[n - z + 1];     while (m--) {       int k;       cin >> k;       if (k == 1) {         int l, r;         cin >> l >> r;         if (r < z)           cout << (l + r) * 1ll * (r - l + 1) / 2 << endl;         else {           long long ans = (z - 1) * (r - max(l, z) + 1), da = ad;           if (l < z) ans += (l + z - 1) * 1ll * (z - l) / 2;           bool b[15] = {0};           for (int i = z; i <= r; ++i) {             long long t = da / jc[n - i];             int j = 1;             da -= t * jc[n - i];             for (; t || b[j]; ++j)               if (!b[j]) --t;             b[j] = 1;             if (i >= l) ans += j;           }           cout << ans << endl;         }       } else {         int t;         cin >> t;         ad = (ad + t) % p;       }     }     return 0;   }   