UVA 10696 - f91

#include 
int main()
{
    int n;
    while(scanf("%d",&n)==1&&n!=0)
    {
        if(n <= 101)
            printf("f91(%d) = 91\n",n);
        else
            printf("f91(%d) = %d\n",n,n-10);
    }
    return 0;
}