ProgMasters 11 - Find three

import java.util.*;

public class Main {
	public static void main(String[] args) {

		Scanner scanner = new Scanner(System.in);
     int n=scanner.nextInt();
     int[] array=new int[n];
     int k =0;
     while (k<n) {
         int b=scanner.nextInt();
         array[k]=b;
         k++;
     }
    boolean vanE=false;
     final int  keresett=3;
     int j=0;

        for (int i = 0; i < array.length; i++) {
            if (array[i]==keresett) {
                j++;
            }
        }

     if (j==keresett) {
         for (int i = 0; i < n-1; i++) {
            if (array[i]==3 && array[i+1]==3) {
                vanE=true;
            }
            //else vanE=false;

        }

         System.out.println(vanE==false? "false":"true");
     }
     else System.out.println("true");

     scanner.close();



	}
}