Problem: A permutation is a sequence of integers from 1 to n of length n containing each number exactly once. For example, [1], [4, 3, 5, 1, 2], [3, 2, 1] — are permutations, and [1, 1], [4, 3, 1], [2, 3, 4] — no.

Permutation a is lexicographically smaller than permutation b (they have the same length n), if in the first index i in which they differ, a[i] < b[i]. For example, the permutation [1, 3, 2, 4] is lexicographically smaller than the permutation [1, 3, 4, 2], because the first two elements are equal, and the third element in the first permutation is smaller than in the second.

The next permutation for a permutation a of length n — is the lexicographically smallest permutation b of length n that lexicographically larger than a. For example: 

  * for permutation [2, 1, 4, 3] the next permutation is [2, 3, 1, 4]; 
  * for permutation [1, 2, 3] the next permutation is [1, 3, 2]; 
  * for permutation [2, 1] next permutation does not exist. 



You are given the number n — the length of the initial permutation. The initial permutation has the form a = [1, 2, …, n]. In other words, a[i] = i (1 ≤ i ≤ n).

You need to process q queries of two types: 

  * 1 l r: query for the sum of all elements on the segment [l, r]. More formally, you need to find a[l] + a[l + 1] + … + a[r]. 
  * 2 x: x times replace the current permutation with the next permutation. For example, if x=2 and the current permutation has the form [1, 3, 4, 2], then we should perform such a chain of replacements [1, 3, 4, 2] → [1, 4, 2, 3] → [1, 4, 3, 2]. 



For each query of the 1-st type output the required sum.

Input

The first line contains two integers n (2 ≤ n ≤ 2 ⋅ 10^5) and q (1 ≤ q ≤ 2 ⋅ 10^5), where n — the length of the initial permutation, and q — the number of queries.

The next q lines contain a single query of the 1-st or 2-nd type. The 1-st type query consists of three integers 1, l and r (1 ≤ l ≤ r ≤ n), the 2-nd type query consists of two integers 2 and x (1 ≤ x ≤ 10^5).

It is guaranteed that all requests of the 2-nd type are possible to process.

Output

For each query of the 1-st type, output on a separate line one integer — the required sum.

Example

Input


4 4
1 2 4
2 3
1 1 2
1 3 4


Output


9
4
6

Note

Initially, the permutation has the form [1, 2, 3, 4]. Queries processing is as follows: 

  1. 2 + 3 + 4 = 9; 
  2. [1, 2, 3, 4] → [1, 2, 4, 3] → [1, 3, 2, 4] → [1, 3, 4, 2]; 
  3. 1 + 3 = 4; 
  4. 4 + 2 = 6 

Solution (in CPP):

Solution:
#include <bits/stdc++.h>
using namespace std;
long long fac[25];
int n, q, a[25], t;
long long x = 0, ans;
int use[25], b[25];
int main() {
  fac[0] = 1;
  for (int i = 1; i <= 20; i++) fac[i] = fac[i - 1] * i;
  scanf("%d%d", &n, &q);
  for (int i = 1; i <= min(n, 20); i++) a[i] = max(n - 20 + i, i);
  for (int i = 1; i <= q; i++) {
    scanf("%d", &t);
    if (t == 1) {
      ans = 0;
      long long l, r;
      scanf("%lld%lld", &l, &r);
      if (r <= n - 20) {
        printf("%lld\n", (r + l) * (r - l + 1) / 2);
        continue;
      }
      for (int j = 1; j <= 20; j++) use[j] = 1;
      long long tx = x;
      for (int j = min(n, 20); j >= 1; j--) {
        int cnt = 0, k;
        for (k = 1; k <= 20; k++)
          if ((cnt += use[k]) == tx / fac[j - 1] + 1) break;
        tx %= fac[j - 1];
        use[k] = 0;
        b[min(n, 20) - j + 1] = a[k];
      }
      for (int j = max((int)l - max(0, n - 20), 1); j <= r - max(0, n - 20);
           j++)
        ans += b[j];
      if (l <= n - 20) ans += (n - 20 + l) * (n - 20 - l + 1) / 2;
      printf("%lld\n", ans);
    } else {
      int dx;
      scanf("%d", &dx);
      x += dx;
    }
  }
  return 0;
}