#include <iostream>
using namespace std;
int main(void){
    // Your code here!
    string s;
    cin >> s;
    int cnt = 0;
    int cnt2 = 1;
    bool is1 = s[0] == '1';
    bool all1 = true;
    for(char c : s){
        if(c == '1'){
            cnt++;
        }
        if(is1 != (c == '1')){
            is1 = !is1;
            cnt2++;
        }
        if(c != '1'){
            all1 = false;
        }
    }
    cout << (cnt == 2 || (cnt > 2 && all1) || min(cnt,cnt2) == 2 ? "Yes" : "No") << endl;
}