#include<bits/stdc++.h>
using namespace std;
using ll = long long;
#define fi first
#define se second
#define all(a) a.begin(),a.end()
int main(){
  int s;
  cin >> s;
  s/=100;
  if(s==4 || s==5) cout << "Yes\n";
  else cout << "No\n";
  return 0;
}