#include <stdio.h>
 
int func(int x, int y, int z) {
    static int call_count=0;
 
    if(x==0 && y==0 && z==0) {
        return call_count;
    }
 
    call_count++;
 
    int basex=1;
    int basey=1;
    for (int i=0;i<z;i++) {
        basex*=x;
        basey*=y;
    }
 
    return basex+basey;
}
 
int main(void) {
    printf("%d\n", func(2, 3, 2));
    printf("%d\n", func(1, 5, 3));
    printf("%d\n", func(0, 0, 0));
    printf("%d\n", func(3, 2, 1));
    printf("%d\n", func(0, 0, 0));
    return 0;
}
 

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