ugjhvvy

#include <bits/stdc++.h>
using namespace std;
int main() {
int n;
cin >> n;
int sum = 0;
while (n > 1) {
if (n % 2 == 0) {
n /= 2;
} else {
n = n * 3 + 1;
}
sum += 1;
}
cout << sum;
return 0;
}