#include <stdio.h>
int main() {
int n,a,p=0;
double sum=0,aver;
scanf("%d",&n);
for(int i=1;i<=n;i++){
scanf("%d",&a);
sum+=a;
if(a>=60) p++;
}
aver = sum/n;
printf("average=%.2lf,pass_num=%d",aver,p);
return 0;
}