text: #include <bits/stdc++.h>
  #define mp make_pair
  #define vi vector<int>
  #define pi pair<int,int>
  #define vii vector<pi>
  using namespace std;
  int main() {
  #ifndef ONLINE_JUDGE
  	freopen("/home/shiva/Learning/1.txt", "r", stdin);
  	freopen("/home/shiva/Learning/2.txt", "w", stdout);
  #endif
  	ios::sync_with_stdio(false); cin.tie(0);
  
  
  }