import java.util.Scanner;

// A girl counting on her left hand’s fingers,
//u need to tell on which finger she will stop for a giving number.
//Counting was like 1-thumb, 2-index finger ,
//3-middle finger, 4-ring finger,5-little finger then 6-ring,
//7-middle , 8-index, 9 thumb , 10 -index and so on ..

public class thumb_finger_problem {

	public static void main(String[] args) {
		String[] hand = new String[] {"thumb","index","middle","ring","little"};
		System.out.println("enter where you want to stop her: ");
		Scanner scan = new Scanner(System.in);
		int number = scan.nextInt();
		//System.out.println(number);
		if(number<=0)
			System.out.println("You enter less than zero");
		if(number>5) {
			number=number-5;

			int i = number/4;
			int k = number%4;
			if(i%2==0) {
				System.out.println(hand[4-k]);
			}
			else
				System.out.println(hand[k]);

			}
		else
			System.out.println(hand[number-1]);
		}



	}