#include "bits/stdc++.h" using namespace std; #define int long long #define pb push_back #define endl "\n" #define x first #define y second #define PII pair<int,int> #define PIII pair<int,PII> const int MOD = 1e9 + 7; const int N = 3e5; const int X[] = {1, 2, 6, 24, ...