import java.util.Scanner; /** * * @author Vidhikara */ public class perfectNum{ public static void main(String[] args) { Scanner in = new Scanner(System.in); System.out.println("Enter the no. - "); long n=in.nextInt(); long sum=0; for(int i=1;i<=n/2;i++){ if(n%i==0){ sum+=i; } } if(n==sum){ System.out.println("Perfect"); }else{ System.out.println("Not Perfect"); } in.close(); } }