#include <bits/stdc++.h>
using namespace std;
using ll=long long;
using ld=long double;
using P=pair<ll,ll>;
using V=vector<ll>;
#define rep(i,n) for(ll i=0;i<n;i++)
#define REP(i,n) for(ll i=1;i<=n;i++)

int main(){
    string s;
    cin >> s;
    int n=s.size(),count=0;
    rep(i,n) if(s[i]=='1') count++;
    if(count<=1){
        cout << "No" << endl;
        return 0;
    }
    if(count==2){
        cout << "Yes" << endl;
        return 0;
    }
    int i=0;
    while(s[i]=='0') i++;
    while(s[i]=='1') i++;
    while(i<n){
        if(s[i]=='1'){
            cout << "No" << endl;
            return 0;
        }
        i++;
    }
    cout << "Yes" << endl;
}