import java.util.Scanner;
public class Main {
    public static void main(String[] args) {
        Scanner keyboard = new Scanner(System.in);

        for(int n = 1 ; n <= 20 ; n = n+1){
if(n % 2 == 0){
    System.out.println(n + " <");
}else{
    System.out.println(n);
}




        }






    }
}