#define _USE_MATH_DEFINES
#include<iostream>
#include<vector>
#include<algorithm>
#include<cmath>
#include<string>
#include<iomanip>
#include<numeric>
#include<queue>
#include<deque>
#include<stack>
#include<set>
#include<map>
#include<random>
#include<bitset>
#include<cassert>
#include<complex>
#include<fstream>
#include<cstdlib>
#include<functional>
#include<array>
using namespace std;
typedef long long ll;
const int mod=998244353;
int main(){
	string n;
	cin>>n;
	if(count(n.begin(),n.end(),'1')==1)
		cout<<"No"<<endl;
	else if(count(n.begin(),n.end(),'1')==2)
		cout<<"Yes"<<endl;
	else if(is_partitioned(n.begin(),n.end(),[](char x){return x=='1';}))
		cout<<"Yes"<<endl;
	else
		cout<<"No"<<endl;
}