#include<iostream> #include<vector> #include<map> #include<algorithm> #define ll long long using namespace std; int main(){ string s;cin>>s; ll len=s.size(); ll cnt=count(s.begin(),s.end(),'1'); if(cnt==2){ cout<<"Yes"<<endl; return 0; } if(cnt==1||cnt==0){ cout<<"No"<<endl; return 0; } ll i=0; while(i<len&&s[i]=='1'){ ++i; } //cout<<cc<<" "<<i<<" "<<s[0]<<endl; if(i==cnt){ cout<<"Yes"<<endl; return 0; } cout<<"No"<<endl; }