#include<iostream>
#include<math.h>
using namespace std;
int main()
{
int n,i,j=0,k,a[100],sum=0;
cout << "Please enter the upper bound\n";
cin >> n;
for(k=1;k<n+1;k++)
{
for(i=1;i<=k/2;i++)
if((k%i)==0)
{
a[j]=i;
j++;
}
for(i=0;i<j;i++)
sum+=a[i];
if(sum==k)
cout << sum <<' ';
sum=0;j=0;
}
return 0;
}