import java.util.*;
public class Main {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
int n = sc.nextInt();
int times = 0;
while (n != 1) {
if (1 == (n & 1)) {
n = (3 * n + 1) >> 1;
} else {
n = n >> 1;
}
++times;
}
System.out.print(times);
sc.close();
}
}
转载于:https://www.cnblogs.com/ruoh3kou/p/9967043.html
