import java.lang.*;

import java.util.*;

class UnderstandSomething {

public static void main(String args[]) {

int numberOfVoterInFirst;

int numberOfVoterInSecond;

int numberOfVoterInThird;

int count=0;

int index=0;

int jInitial=0;

int kInitial=0;

My solution in java:

import java.lang.*;

import java.util.*;

class UnderstandSomething {

public static void main(String args[]) {

Scanner sc = new Scanner(System.in);

int numberOfStack,heightOfStack,command;

int indexValue = 0;

int pickup = 0;