public class HelloWorld{

     public static void main(String []args){

        // wpisalem na poczatku a2 = 0
        // tylko zeby zobaczyc jaki jest wynik
        // petla
        boolean found = false;
        int i = Integer.MIN_VALUE;
        int i_max = -i;
        for( ; i < i_max ; i++)
        {
            int a1 = 0x6D, a2 = i, a = a1 & a2,
                b1 = 0xA, b2 = a2, b = b1 | b2,
                c1 = 11 << 2, c2 = a2, c = c1 ^ c2;

            if( a == 13 && b == 15 & c == 42)
            {
                found = true;
                System.out.println("mamy to");
                System.out.println(a + " " + b + " " + c);
                System.out.println("a2 = " + i);
                break;
            }
        }

        if( false == found )
        {
            System.out.println("dupa");
        }
     }
}