OJ Board

Hey Please help !
Presentation error why?
#include<stdio.h>
int main()
{
long int num,i,sum;
printf("PERFECTION OUTPUT\n");
while(scanf("%ld",&num)==1)
{
if(num==0)
{
printf("END OF OUTPUT\n");
break;
}
else
{
sum=0;
for(i=1;i<num;i++)
{
if(num%i==0) sum+=i;
}
if(sum==num) printf("%5ld PERFECT ...