#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")



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