/* Demonstrate using a while statement.
 * Program will output the numbers 1 - 20
 */


import javax.swing.JOptionPane;
class Loop1{
	public static void main(String [] args){
		final int HIGH = 20;
		int i = 1;
		while(i <= HIGH){
			System.out.print(i + " ");
			i += 1;
		}
		System.out.println();
	}
}