pat1001

#include<iostream>
using namespace std;
int ans;
int digui(int n)
{
if(n==1)
return ans; else if(n%2==0) { ans++; digui(n/2); } else if(n%2==1) { ans++; digui((3*n+1)/2); } } int main() { int n; while(cin>>n) {     ans=0; digui(n); cout<<ans<<endl; } return 0;  } 

























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