#include "bits/stdc++.h"
using namespace std;
int main() {
    /*
     * 有一个农夫带一只羊、一筐菜和一只狼过河。如果没有农夫看管,则狼要吃羊,羊要吃菜。但是船很小,只够农夫带一样东西过河。问农夫该如何解此难题?
     */
    cout << "sheep_go" << endl;
    cout << "nothing_come" << endl;
    cout << "wolf_go" << endl;
    cout << "sheep_come" << endl;
    cout << "vegetable_go" << endl;
    cout << "nothing_come" << endl;
    cout << "sheep_go" << endl;
    cout << "succeed" << endl;
}