//** using java 7 static String count(ArrayList mylist){ int a = 0,b = 0,c = 0; for(int i = 0; i < mylist.size(); i++){ Object element=mylist.get(i); if(element instanceof Student) a++; if(element instanceof Rockstar) b++; if(element instanceof Hacker) c++; }

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import java.io.; import java.util.;

public class Solution {

public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int n = sc.nextInt();
    String[] Name = new String[n];
    for (int i = 0; i < n; i++) {
        Name[i] = sc.next();
    }
    int S_count = 0;
    int R_count = 0;
    int H_count = 0;
    for (int i = 0; i < n; i++) {
        if (Name[i].equals("Student")) {
            S_count++;
        } else if (Name[i].equals("Rockstar")) {
            R_count++;
        } else if (Name[i].equals("Hacker")) {
            H_count++;
        }
    }
    System.out.println(S_count + " " + R_count + " " + H_count);
}

}

import java.io.; import java.util.;

class Student{} class Rockstar{} class Hacker{}

public class Solution {

static String count(ArrayList mylist){
    int a = 0,b = 0,c = 0;
    for(int i = 0; i < mylist.size(); i++){
        Object element=mylist.get(i);
        if(element instanceof Student)
            a++;
        if(element instanceof Rockstar)
            b++;
        if(element instanceof Hacker)
            c++;
    }
    String ret = a + " " + b + " " + c;
    return ret;
}

public static void main(String[] args) {
    ArrayList mylist = new ArrayList();
    Scanner sc = new Scanner(System.in);
    int t = sc.nextInt();
    for(int i=0; i<t; i++){
        String s=sc.next();
        if(s.equals("Student")) mylist.add(new Student()); // Added this line
        if(s.equals("Rockstar")) mylist.add(new Rockstar()); // Added this line
        if(s.equals("Hacker")) mylist.add(new Hacker()); // Added this line
    }
    System.out.println(count(mylist));
}

}

import java.util.*;

class Student{} class Rockstar{ } class Hacker{}

public class InstanceOFTutorial{

static String count(ArrayList mylist){ int a = 0,b = 0,c = 0; for(int i = 0; i < mylist.size(); i++){ Object element=mylist.get(i); if(element instanceof Student) a++; if(element instanceof Rockstar) b++; if(element instanceof Hacker) c++; } String ret = Integer.toString(a)+" "+ Integer.toString(b)+" "+ Integer.toString(c); return ret; }

public static void main(String []args){ ArrayList mylist = new ArrayList(); Scanner sc = new Scanner(System.in); int t = sc.nextInt(); for(int i=0; i