xxx定律

//xxx定律
#include<stdio.h>
using namespace std;
int main() {
	int n;
	while (scanf_s("%d", &n) != EOF){//读多个值
		int count = 0;
		while (n != 1) {
			count++;
			if (n % 2 == 0) n = n / 2;
			else n = (3 * n + 1)/2;
		}
		printf("%d\n", count);
	}
	return 0;
}