For Eugen

public class Main {
    public static void main(String[] args) {
        double [] array = new double[10];
        int first = 0,second = 0;
        double sum = 0;
        for(int i = 0; i<array.length; i++)
        {
            array[i] = Math.random()*20 - 10;
            if(array[i] > 0 && first == 0){
                first = i;
            }
            else if(array[i] > 0 && first != i && second == 0){
                second = i;
            }
        }
        for(int i = first; i< second; i++){
            sum += array[i];
        }
        System.out.println(sum);
    }
}