#include<iostream>
using namespace std;
int main(){
	int b[3];
	cin>>b[0]>>b[1]>>b[2];
	if(b[0]==1&&b[1]==1&&b[2]==0)cout<<"Open"<<endl;
	else if(b[0]==0&&b[1]==0&&b[2]==1)cout<<"Open"<<endl;
	else cout<<"Close"<<endl;
	return 0;
}