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

int main()
{
	string N;
	cin >> N;

	int sz = N.size();
	string ans = "No";
	int c = 0;
	vector<int> v;
	for( int i = 0; i < sz; i++ ) {
		if( N[i] == '1' ) {
			c++;
			v.push_back( i );
		}
	}
	if( c == 2 ) ans = "Yes";
	if( c > 2 ) {
		int f = 0;
		int sz1 = v.size();
		for( int i = 0; i < sz1 - 1; i++ ) {
			if( v[i] + 1 != v[i + 1] ) f = 1;
		}
		if( f == 0 ) ans = "Yes";
	}

	cout << ans << endl;
}