import java.util.*; import java.lang.*; // x + 31x = x(31 + 1) = x + 31 + 31(x-1) public class Identical { public static void main(String[] args) { String s1 = new String("BB"); String s2 = new String("Aa"); System.out.println(s1.hashCode()); System.out.println(s2.hashCode()); } }