pta basin 1001

#include <cstdio>#include <cstring>#include <string>#include <algorithm>#include <queue>#include <map>#include <cmath>#include <iostream>#include <set>#include <vector>#define INF 0x3f3f3f3fusing namespace std;const int N=1e5+5;typedef long long ll;int main(){    int n;    scanf("%d",&n);    int num=0;    while(n!=1)    {        if(n&1) n=(3*n+1)/2;        else n/=2;        num++;    }    printf("%d\n",num);}