#include using namespace std; typedef long long ll; signed main(){ ios::sync_with_stdio(false); cin.tie(0); cout << fixed << setprecision(20); ll n; cin>>n; ll ans1=0,ans2=n; while(n!=1){ if(n%2==0){ n/=2; } else n = 3*n+1; ans1++; ans2=max(ans2,n); } cout << ans1 <