UVA Solution for 10006

#include<stdio.h>
#include<stdlib.h>

int main()
{
    int n;
    int a[20]={561, 1105, 1729, 2465, 2821, 6601, 8911, 10585, 15841, 29341, 41041, 46657, 52633, 62745, 63973};
    while(scanf("%d",&n)==1)
    {
    if(n==0)
    break;
    if(n==a[0] || n==a[1] || n==a[2] ||n==a[3] ||n==a[4] ||n==a[5] ||n==a[6] ||n==a[7] ||n==a[8] ||n==a[9] ||n==a[10] ||n==a[11] ||n==a[12] ||n==a[13] ||n==a[14] )
    printf("The number %d is a Carmichael number.\n",n);
    else
      printf("%d is normal.\n",n);
}    }