max1020

//  Description
//      Given 2 positive int values, return the larger value that is in the
//      range 10..20 inclusive, or return 0 if neither is in that range.
//
//      Example - max1020(a,b)
//      max1020(11, 19) → 19
//      max1020(19, 11) → 19
//      max1020(11, 9) → 11


public class max1020 {
    public static void main(String []args) {
        int a, b;
        a = Integer.parseInt(args[0]);
        b = Integer.parseInt(args[1]);

        if ((a >= 10 && a <=20) || (b >= 10 && b <=20)) {
            if (a <= 20 && a > b) {
                System.out.println(a);
            } else {
                System.out.println(b);
            }
        } else {
            System.out.println("0");
        }
    }
}