import java.util.Scanner;

public class Main {

    public static void main(String[] args) {

        Scanner input = new Scanner(System.in);

        System.out.print("请输入整数的数量: ");
        int n = input.nextInt();

        int min = Integer.MAX_VALUE;
        int max = Integer.MIN_VALUE;
        int sum = 0;

        for (int i = 1; i <= n; i++) {
            System.out.print("请输入第" + i + "个整数: ");
            int num = input.nextInt();
            min = Math.min(min, num);
            max = Math.max(max, num);
            sum += num;
        }

        double avg = (double) sum / n;

        System.out.println("最小数为: " + min);
        System.out.println("最大数为: " + max);
        System.out.println("平均数为: " + avg);
    }
}