#include <stdio.h>

int array[] = { 23, 34, 12, 17, 204, 99, 16 };
#define TOTAL_ELEMENTS (sizeof(array) / sizeof(array[0]))

int main()
{
int d= -1, x;
if (d <= TOTAL_ELEMENTS-2)
x = array[d+1];
printf("%d", x);
return 0;
}