bool isEven(int x) {
    if (divide(x, 2) * 2 == x) {
        return true;
    } else {
        return false;
    }
}
int divide (int a, int b) {
    if (b == 0) {
        return 0;
    }
    var result = 0;
    while (a > 0) {
        a = a - b;
        result = result + 1;
    }
    return result;
}
int helper(int x, int count) {
    if (x == 1) {
        return count;
    } else if (isEven(x)) {
        return helper(divide(x, 2), count + 1);
    } else {
        return helper(3 * x + 1, count + 1);
    }
}
int collatz(int x) {
    return helper(x, 0);
}
int program(int argc, string[] argv) {
    return collatz(12);
}