简单模拟B1001

#include<iostream>

using namespace std;

int main()
{
    int n;
    int step = ;
    cin >> n;
    while(n != )
    {
        if(n %  == )
        {
            n = (*n+)/;
            step++;
        }
        else
        {
            n = n/;
            step++;
        }
    }
    cout << step <<endl;
    return ;
}