/*
 * This program demonstrates the use of if statements.
 */
class TwoThreeSorts {
    public static void main(String[] args) {
        int argsLength = args.length;

        if (argsLength < 2 || argsLength > 3) {
            System.out.println("I need 2 or 3 arguments, please.");
            System.exit(1);
        }

        // If I am here, there are 2 or 3 arguments.
        int a, b, c = 0; // There are at most 3 ints input by the user.

        a = Integer.parseInt(args[0]);
        b = Integer.parseInt(args[1]);

        // Make sure a <= b by swapping them if necessary.
        if (a > b) {
            int t = a; a = b; b = t;
        }

        // At this point we know a <= b.
        if (argsLength == 3) {
            c = Integer.parseInt(args[2]);
            // Make sure b <= c by swapping them if necessary.
            if (b > c) { 
                int t = b; b = c; c = t;
            }
            // At this point c is the biggest number but no guarantee
            // on the values of a & b.
            // So we make sure a <= b by swapping them if necessary.
            if (a > b) {
                int t = a; a = b; b = t;
            }
        }

        System.out.println(a);
        System.out.println(b);
        if (argsLength == 3)
            System.out.println(c);
    }
}