#include using namespace std; int main() { int n,c=0; scanf("%d",&n); if(n%20) { while(n!=1) { if(n%20){ n=n/2; c++;} else { n=n3+1; c++; } } } else { n=n3+1; c++; while(n!=1) { n=n/2; c++; if(n%2==0){ n=n/2; c++;} else { n=n*3+1; c++; } } } printf("%d",c); return 0; }