#include <stdio.h>
 
int func(int x, int y, int z)
{
    static int counter = 0;
    counter++;
 
    if (x == 0 && y == 0 && z == 0)
        return counter;
 
    int result_x = 1, result_y = 1;
    for (int i = 0; i < z; i++) result_x *= x;
    for (int i = 0; i < z; i++) result_y *= y;
 
    return result_x + result_y;
}
 
int main()
{
    int i, x = 0;
    for (i = 1; i < 4; i++) x = x + func(i, i, i);
    printf("counter=%d\n", func(0, 0, 0));
    printf("%d %d\n", x, func(1, 2, 3));
    printf("counter=%d\n", func(0, 0, 0));
}

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