Test

import java.util.Scanner;

public class OddEvenPosition {
    public static void main(String[] args) {
        Scanner myScan = new Scanner(System.in);

        int count = Integer.parseInt(myScan.nextLine());

        double oddMax = Integer.MIN_VALUE;
        double oddMin = Integer.MAX_VALUE;
        double evenMax = Integer.MIN_VALUE;
        double evenMin = Integer.MAX_VALUE;
        double evenSum = 0.0;
        double oddSum = 0.0;


        for (int i = 1; i <= count; i++) {
            double number = Double.parseDouble(myScan.nextLine());
            if (i % 2 == 0) {
                evenSum += number;
                if (evenMax < number) {
                    evenMax = number;
                }

                if (evenMin > number) {
                    evenMin = number;
                }
            } else {
                oddSum += number;
                if (oddMax < number) {
                    oddMax = number;
                }
                if (oddMin > number) {
                    oddMin = number;
                }
            }
        }


    }
}