#include <bits/stdc++.h>

using namespace std;

int main () {

  string s;
  cin>>s;
  int n = s.size()/8;

  int exp = 0;
  for (int i=0;i<n;i++) {
	if (s[i*8]=='0') { //car
	  if (exp==0) {
		cout<<"No"<<endl;
		return 0;
	  }
	  exp--;
	} else { //loco
	  if (exp!=0) {
		cout<<"No"<<endl;
		return 0;
	  }
	  for (int j=i*8+7;s[j]=='0';j--)
		exp++;
	}
  }

  if (exp==0) {
	cout<<"Yes"<<endl;
  }
  else  {
	cout<<"No"<<endl;
  }

  return 0;
}