text: #include <iostream>
  #include <cstdio>
  #include <algorithm>
  #include <vector>
  #include <set>
  #include <cstring>
  using namespace std;
  int main(){
      //freopen("/Users/zyy/Documents/GitHub/Daily/algorithm/in.txt","r",stdin);
      int t;
      ios::sync_with_stdio(0);
      cin.tie(0);
      cout.tie(0);
      cin >> t; 
  }