#include<iostream>
#include<string>
#include <vector>
#include <algorithm>
#include <iomanip>
using namespace std;

int main(int argc, char const *argv[])
{
	
	for (int i = 0; i < 10; ++i)
	{
		for (int j = 0; j < 10; ++j)
		{
			for (int k = 0; k < 10; ++k)
			{
				string R;
				cout<<i<<j<<k<<endl;
				cin>>R;

				if (R == "unlocked")
				{
					return 0;
				}
				
			}
		}



	}	
	return 0;
}