#include <bits/stdc++.h>
using namespace std;
using ll = long long; 
#ifdef LOCAL
#include <debug.h>
#else
#define dbg(...) 0
#define dbgn(...) 0
#endif

void solve(){
	int n; 
	cin >> n; 
	if(n == 0) cout << "Yes\n"; 
	else cout << "No\n"; 
}

int32_t main() {
    cin.tie(0)->sync_with_stdio(0);
    solve(); 
    return 0; 
}