手指
#include <iostream>
using namespace std;
int main()
{
int a;
cin>>a;
if(a%8-1==0)
cout<<"大拇指"<<endl;
else if(a%8-5==0)
cout<<"小指"<<endl;
else if(a%4-3==0)
cout<<"中指"<<endl;
else if(a%8==0||a%8==2)
cout<<"食指"<<endl;
else if(a%4==0||a%4==2)
cout<<"无名指"<<endl;
else
cout<<"Input error!"<<endl;
return 0;
}