#include <stdio.h>

int elem_arithmetic(int nums[], int y) {
    int z = nums[0] * y;
    z -= nums[1];
    z >>= 2;
    return z + 2;
}

int main(int argc, char const *argv[]) {
	int nums[4] = {5, 8, 1, 6};
	int result = elem_arithmetic(nums, 5);
	printf("result = %d\n", result);
	return 0;
}