#include <bits/stdc++.h>
#define rep(i,n) for(int i = 0; i < (n); i++)
using namespace std;
typedef long long ll;

int main(){
    cin.tie(0);
    ios::sync_with_stdio(0);
    
    string s; cin >> s;
    vector<pair<char,int>> v;
    v.push_back({s[0], 1});
    for(int i = 1; i < int(s.size()); i++) {
        if(v.back().first == s[i]) v.back().second++;
        else v.push_back({s[i], 1});
    }

    vector<int> a;
    for(auto [x, cnt] : v) if(x == '1') a.push_back(cnt);
    if(int(a.size()) == 1) {
        if(a[0] == 1) cout << "No" << endl;
        else cout << "Yes" << endl;
    } else {
        if(int(a.size()) == 2 && a[0] == 1 && a[1] == 1) cout << "Yes" << endl;
        else cout << "No" << endl;
    }
}