#include <stdio.h>
#include <iostream>

using namespace std;

int main(){
     int n;
    cin>>n;
  
    if ((n/100)==7)
	{
		cout<<"Yes";
	}else if((n%100)%70==0){
          cout<<"Yes";
	}else if((n-7)%10==0){
           cout<<"Yes";
	}else{
		cout<<"No";
	}
	
	 
    return 0;
}