void printf(char*, ...);

int fibonacci(int n) {
    if (n < 2)
        return 1;
    return fibonacci(n - 1) + fibonacci(n - 2);
}

void modify_value(char* otus) {
    *otus = 20;
}

int main() {
    printf("10th fibonacci number is %d!", fibonacci(10));

    char somelist[5];

    somelist[0] = 15;
    somelist[1] = 20;
    somelist[2] = 25;

    return somelist[0];
}