题解

#include<bits/stdc++.h>
#define ll long long                                                                  //防抄袭标记
#define MAXN 100005
#define maxn 1000005
#define MAXM 10000005
#define maxm 100000005
using namespace std;

int main(){
	for(int i = 1;i<=5;i++){
		int a;
		cin>>a;
		if(a<60){
            cout<<"NO";
            return 0;
        }
        
	}	
	cout<<"YES";
	return 0;
}