uva 591(Box of breaks)

#include <stdio.h>
int main()
{
    int n,avg,a[100],sum,count,set = 0,i;
    while(scanf("%d",&n)){
        sum=count=0;
        if(n==0)
            return 0;
        for(i=0;i<n;i++){
            scanf("%d", & a[i]);
            sum+=a[i];
        }
        avg=sum/n;
        for(i=0;i<n;i++){
            if(a[i]>avg)
                count+=(a[i]-avg);
        }
            printf("set #%d\n", ++set);
            printf("minimum %d.\n\n",count);

    }


    return 0;
}