#include <stdio.h>
#define MAX 100

int seiseki[MAX];
int size=0;
int record(int a){
    if (size < MAX) {
        seiseki[size] = a;
        size++;
    }
    return 0;
}

double average(){
    int i;
    int sum = 0;
    if (size == 0) return 0.0;
    
    for (i = 0; i < size; i++) {
        sum += seiseki[i];
    }
    return (double)sum / size;
}


double cond_average(int a, int b) {
    int i;
    int sum = 0;
    int count = 0; 
    
    for (i = 0; i < size; i++) {
        // 点数が a点以上 かつ b点以下 であるか判定
        if (seiseki[i] >= a && seiseki[i] <= b) {
            sum += seiseki[i];
            count++;
        }
    }
   
    if (count == 0) {
        return 0.0;
    }
    
    return (double)sum / count;
}

int main(){
    int score,num,i;
    scanf("%d",&num);
    printf("num=%d\n",num);
    for(i=0;i<num;i++){
        scanf("%d", &score);
        printf("score=%d\n",score);
        record(score);
    }

    printf("Ave=%lf\n", average());
    
    printf("Cond_Ave=%lf\n", cond_average(60, 100));
    
    return 0;
}