// you can also use imports, for example:

// import java.util.*;

// you can write to stdout for debugging purposes, e.g.

// System.out.println("this is a debug message");

class Solution {

    public int solution(int N) {

        // write your code in Java SE 8

        int tempMod=0;

        int length=0;

        int posOne=-1;

        int step=0;

         while(N>0){

             tempMod=(N%2);

             if(tempMod==1){

                 if(posOne>=0){

                     length=(length < (step-posOne-1))?(step-posOne-1):length;

                     }

                 posOne=step;

                 }

             step++;

             N=(N/2);

             }

        return length;

    }

}

public int solution(int[] A) {

        // write your code in Java SE 8

        int i=0;

        int result=0;

        while(i<A.length){

            result=(result^A[i]);

            i++;

            }

        return result;

    }

// you can also use imports, for example:

// import java.util.*;

// you can write to stdout for debugging purposes, e.g.

// System.out.println("this is a debug message");

class Solution {

    public int[] solution(int[] A, int K) {

        // write your code in Java SE 8

        int[] newA = new int[A.length];

        int i=0;

        while(i<A.length){

            newA[(i+K)%(A.length)]=A[i];

            i++;

            }

            return newA;

    }

}