#include <stdio.h>
#include <math.h>

#define n 10

int summ(int a[])
{
    int result = 0;

    for (int i=0; i<=n; i++)
    {
        if(a[i] < 0)
        {
            result = abs(a[i+1]) + abs(a[i+2]);
            break;
        }
    }
    
    return result;
}

void main()
{
    int a[n] = {1,5,11,-5,2,-1,3,2,9,-2};
    printf("Summa = %d", summ(a));
}

//EOF