#include <stdio.h>
#include <atcoder/all>
#include <bits/stdc++.h>
using namespace std;
using namespace atcoder;
using mint = modint998244353;
#define rep(i,n) for (int i = 0; i < (n); ++i)
#define Inf32 1000000001
#define Inf64 4000000000000000001

int main(){
	
	string s;
	cin>>s;
	
	int cnt=  0;
	rep(i,s.size()){
		if(s[i]=='1')cnt++;
	}
	
	if(cnt==2){
		cout<<"Yes"<<endl;
	}
	else if(cnt<=1){
		cout<<"No"<<endl;
	}
	else{
		if(s==string(s.size(),'1')){
			cout<<"Yes"<<endl;
			return 0;
		}
		rep(i,s.size()){
			if(s[i]!='1'){
				bool f = true;
				for(int j=i+1;j<s.size();j++){
					if(s[j]=='1'){
						f = false;
						break;
					}
				}
				if(f){
					cout<<"Yes"<<endl;
					return 0;
				}
				else{
					cout<<"No"<<endl;
					return 0;
				}
			}
		}
	}
    return 0;
}