#include<stdio.h>
int main() {
    int n;
    scanf("%d", &n);
    if (n <= 0) {
        printf("Invalid Input");
        return 0;
    }
    int arr[n];
    for (int i = 0; i < n; i++) {
        scanf("%d", &arr[i] > 100) {
            printf("Invalid Input");
            return 0;
        }
    }
    int max = arr[0], min = arr[0];
    float sum = 0;
    
    for (int i = 0; i < n; i++){
        if (arr[i] > max) max = arr[i];
        if (arr[i] < min) min = arr[i];
        sum += arr[i];
    }
    printf("%d\n",max);
    printf("%d\n", min);
    printf("%.2f",sum / n);
    return 0;
}