#include <stdio.h>
void main()
{
    int n, i, sum;
    int mn, mx;
    printf("Enter the start point : ");
    scanf("%d", &mn);
    printf("Enter the end point : ");
    scanf("%d", &mx);
    printf("The Perfect numbers from the range are :");
    for (n = mn; n <= mx; n++)
    {
        i = 1;
        sum = 0;
        while (i < n)
        {
            if (n % i == 0)
                sum = sum + i;
            i++;
        }
        if (sum == n)
            printf("%d ", n);
    }
    printf("\n");
}