import java.math.BigDecimal;
import java.util.Scanner;

public class Main {
  private static final double BigDecimal = 0;

  public static void main(String[] args)
  {

    Scanner sc = new Scanner(System.in);
    int n = sc.nextInt();
    double arr[] = new double[n];

    // Set smallest and largest values.

    double smallest = Double.MAX_VALUE;
    double largest = Double.MIN_VALUE; // -100000;
    double sum = 0;
    double average = 0;

    // Get the input in an array.
    for (int i = 0; i < n; i++)
    {
      arr[i] = sc.nextDouble();
    }

    //Check what is inside the array
    //System.out.println(Arrays.toString(arr));


    for (int i = 0; i < arr.length; i++)
    {
      // If the current number is less than "smallest" make it the smallest.
      if (arr[i] < smallest)
      {
        smallest = arr[i];
      }

      // If the current number is bigger than than "largest" make it the largest.
      if (arr[i] > largest)
      {
        largest = arr[i];
      }

      sum = sum + arr[i];

    }
      average = sum / arr.length;

    // If the largest number is less than zero make the smallest the largest;

    if ( largest == BigDecimal)
    {
      largest = smallest;
    }

        System.out.printf("min=%.2f%n", smallest);
        System.out.printf("max=%.2f%n", largest);
        System.out.printf("sum=%.2f%n", sum);
        System.out.printf("avg=%.2f%n", average);

    sc.close();

  }
}
/*
Input   Output
3

2
5
1

min=1.00
max=5.00
sum=8.00
avg=2.67
3

2
-1
4
min=-1.00
max=4.00
sum=5.00
avg=1.67

*/