#include <bits/stdc++.h>
using namespace std;

/*
ショトカ登録
cin cout endl return
int double string char
pair make_pair first second tuple make_tuple
sort erase swap
stoi
auto bool true false
vector queue priority_queue front pop_frpnt
size substr push_back pop_back push pop top
if for while break continue next_permutation
__builtin_popcount 
*/

//無限
int inf = 1020304050;
int64_t INF = 1020304050607080900;

//モッド
int64_t mod = 998244353;

//all マクロ
#define all(v) v.begin(), v.end()


int main () {
    //少数以下
    cout << fixed << setprecision(15);

    int N; cin >> N;
    if (N == 0) cout << "Yes" << endl;
    else cout << "No" << endl;
}