#include <iostream>
using namespace std;

int main()
{
    string n;
    cin >> n;
    int k = n.size();
    bool f = true;
    bool g = true;
    int c = 0;
    for (int i = 0; i < k; i++)
    {
        if (n[i] == '1')
        {
            if (!f)
            {
                g = false;
            }
            c++;
        }
        else
        {
            f = false;
        }
    }
    cout << (c == 2 || (c >= 2 && g) ? "Yes" : "No") << endl;
}