text: #include <bits/stdc++.h>
  
  using namespace std;
  
  #define scan1(x) cin >> x
  #define print1(x) cout << x
  #define scan2(x, y) cin >> x >> y
  #define print2(x, y) cout << x << y
  #define scan3(x, y, z) cin >> x >> y >> z
  #define print3(x, y, z) cout << x << y << z
  #define printd(x, y, z) cout << fixed << setprecision(y) << x << z
  
  typedef long long ll;
  typedef unsigned long long ull;
  typedef long double ld;
  
  class Solution_To_Problem
  {
      // variables
      int a, b, c, d, m, n, p, q, s, t, x, y, z;
      int testCase, count, count1, count2, sum, sum1, sum2, temp;
      ll r, l, k;
      double e, f, g, h;
      char ch, ch1, ch2;
      bool con, con1, con2, check;
      string str, s1, s2;
      // constants
      const ld Pi = acos(-1);
      const int Mod = 10'000'007;
  
    public:
      void solution_function()
      {
      }
  } Solution;
  
  int main()
  {
      ios_base::sync_with_stdio(false);
      cin.tie(NULL);
  
      Solution.solution_function();
  
      return 0;
  }