#include<iostream>
#include<cstdio>
using namespace std;
//I LOVE CCF !!!   PLEASE LET ME PASS !!!! 
int main(){
	freopen("match.in","r",stdin);
	freopen("match.out","w",stdout);
	cerr<<"I LOVE CCF !!!   PLEASE LET ME PASS !!!! ";
	cout<<8;
	return 0;
}