#include <bits/stdc++.h>
#define REP(i,n,N) for(int i=(n);i<(int) N;i++)
#define p(s) cout<<(s)<<endl
using namespace std;

int main(){
	int sum=0;
	string q="";
	int num;
	string s;
	REP(i,0,9){
		REP(j,0,10) cout<<i;
		cout<<endl;
		cin>>num>>s;
		if(s=="unlocked") break;
		sum+=num;
		REP(j,0,num) q+=(char) '0'+i;
	}
	if(s!="unlocked"){
		REP(j,0,10-sum) q+='9';
		do{
			p(q);
			cin>>num>>s;
			if(s=="unlocked")	break;
		}while(next_permutation(q.begin(),q.end()));
	}

	return 0;
}