using System;

public class Program

{

    public static void Main()

    {

int[] s1 = new int[10] { 1, 2, 3, -4, 5, 6, 7, 8, -9, 10 }; 

        int[] s3 = new int[10];

        int t;

        for(int i = t = 0; i < 10; i++, t++)

        {

             if (s1[t] > 0)

                 s3[i] = s3[i] + s1[i];

        }

        for(int i = 0; i < 10; i++)

        {

            Console.Write(s3[i]+" ");

    }

    }

}

​