#include<bits/stdc++.h>
using namespace std;
char command,feedback;
int a[105][105];
int main(){
	while (true) {
    command='left';
    cout<<command<<endl;
    cin<<feedback;
    if(all_explored){
        cout<<"END"<<endl;
        cout<<10<<" "<<10<<endl;
        for(int i = 0; i < n; i++) {
            for(int j = 0; j < m; j++) {
        	    cout<<a[i][j];
            }
            cout<<endl;
        }
    }else{
    	cout<<command<<endl;
    	cin>>feedback;
    	feedback=get_feedback(command);
    	if(feedback!='FAIL'){
    	   cout<<command;	
		}
	}
}