save project

1.py

+n=input("请输入")
+c=int(n)
+i=0
+while True:
+    if c!=1:
+        if c%2==1:
+            c=(3*c+1)/2
+            i=i+1
+        else :
+            c=c/2
+            i=i+1
+    else:
+        
+        print(i)
+        break
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