#include <iostream>
using namespace std;

int main() {
    cout<<"sheep_go"<<endl;
    cout<<"nothing_come"<<endl;
    cout<<"vegetable_go"<<endl;
    cout<<"sheep_come"<<endl;
    cout<<"wolf_go"<<endl;
    cout<<"nothing_come"<<endl;
    cout<<"sheep_go"<<endl;
    cout<<"succeed"<<endl;
}
// 64 位输出请用 printf("%lld")