#include<cstdio>
#include<vector>
#include<bits/stdc++.h>
#include<windows.h>
using namespace std;
int main()
{
 Sleep(10000);
 int N,c,d;
 bool a=true;
 scanf("%d",&N);
 int b[n],f[n];
 int e=n;
 while(a) 
 {
  
 }
}

#include<cstdio>
#include<vector>
#include<bits/stdc++.h>
#include<windows.h>
using namespace std;
int main()
{
 Sleep(10000);
 int N,c,d;
 bool a=true;
 scanf("%d",&N);
 int b[n],f[n];
 int e=n;
 while(a) 
 {
  
 }
}

#include<cstdio>
#include<vector>
#include<bits/stdc++.h>
using namespace std;
int main()
{
 int N,c,d;
 bool a=true;
 scanf("%d",&N);
 int b[n],f[n];
 int e=n;
 while(a) 
 {
  b[n]
 }
}