import java.util.Scanner;

class Sep15d {
	public static void main(String[] args) {

		/*
			while (boolean_exp) {


			}
		*/

		// infinite loop
		int i = 1;
		while (i <= 10) {
			System.out.println(i);
		}

		// print 1 through 10
		int i = 1;
		while (i <= 10) {
			System.out.println(i);
			i++;
		}
	}
}