#include<iostream>
using namespace std;
int main(){
	int cnt41=0,cnt63=0,cnt118=0,x;
	for(int i=1;i<=8;i++){
		cin>>x;
		if(x>=41)cnt41++;
		if(x>=63)cnt63++;
		if(x>=118)cnt118++;
	}
	if(cnt118>=1)cout<<10;
	else if(cnt63>=4)cout<<8;
	else if(cnt41>=4)cout<<3;
	else cout<<1;
	return 0;
}