#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using P = pair<ll,ll>;
#define fix(x) fixed << setprecision(x)
#define asc(x) x, vector<x>, greater<x>
#define rep(i, n) for(ll i = 0; i < n; i++)
#define all(x) (x).begin(),(x).end()
template<class T>bool chmin(T&a, const T&b){if(a>b){a=b;return 1;}return 0;}
template<class T>bool chmax(T&a, const T&b){if(a<b){a=b;return 1;}return 0;}

int main(){
    cin.tie(nullptr);
    ios::sync_with_stdio(false);
    string n;
    cin >> n;
    int x = 0, y = 0;
    bool b = false;
    for(char c:n){
        if(b && c=='0') b = false;
        if(!b && c-'0') b = true, y++;
        x += c-'0';
    }
    bool ans = false;
    if(x>=2){
        if(x==2) ans = true;
        else if(y==1) ans = true;
    }
    cout << (ans?"Yes\n":"No\n");
    return 0;
}