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

typedef long long ll;
#define int ll
#define _FastIO ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0)
#define all(x) x.begin() , x.end()
#define pii pair<int , int>
#define pb emplace_back
#define F first
#define S second
const int mod = 1e9 + 7;
const int MAXX = 1e5 + 5;

string s;

signed main()
{
    _FastIO;
    cin >> s;
    if(s == "1"){
        cout << "No" << endl;
        return 0;
    }
    int n = s.size();
    int cnt = 0;
    int x = 0;
    bool ok = true;
    for(int i = 0; i < n; i++){
        if(s[i] == '0'){
            x++;
            if(cnt <= 1)
                ok = false;
        }
        if(s[i] == '1'){
            cnt++;
            if(x)
                ok = false;
        }
    }
    cout << (((cnt == 2) || (ok)) ? "Yes" : "No") << endl;
    return 0;
}