#include<stdio.h>
int checkIfPerfect(long x);
long nextPerfectN(long N);
void firstMPerfect(int M);
int main()
{
  int k=4;
  printf("Printing first %d perfect numbers: ",k);
  firstMPerfect(k);printf("\n");
  return 0;
}
int checkIfPerfect(long x)
{
  long sum = 0,i = 0;
  for(i=1;i<x;i++)
  {
    if(x%i==0)
      sum += i;
  }
  if(sum == x)
    return 1;
  else
    return 0;
}
long nextPerfectN(long N)
{
  long i=0;
  for(i = N+1;i > N;i++)
  {
    //printf("%ld\n",i);
    if(checkIfPerfect(i))
      return i;
  }
  return 0;
}
void firstMPerfect(int M)
{
  int count = 0,n=0;
  while(count < M)
  {
    n = nextPerfectN(n);
    printf(" %ld , ",n);
    count++;
  }
}