Additional fix 2001/cheong - check args

2001/cheong/README.md

@@ -11,28 +11,12 @@ US\
 make
 ```
 
-
-### Bugs and (Mis)features
-
-The current status of this entry is:
-
-```
-STATUS: known bug - please help us fix
-```
-
-For more detailed information see [2001 cheong in bugs.md](/bugs.md#2001-cheong).
-
-
 ## To use:
 
 ```sh
 ./cheong digits
 ```
 
-### INABIAF - it's not a bug it's a feature! :-)
-
-This program will very likely crash or do something different without an arg.
-
 
 ## Try:
 

2001/cheong/cheong.c

@@ -11,4 +11,4 @@ c=o+     (D[I]+82)%10-(I>l/2)*
 :!(o=pain(c/10,O,I-1))*((c+999
 )%10-(D[I]+92)%10);}return o;}
 int main(int o,char **O)     {
-return pain(o, O, l);	     }
+return o>1?pain(o, O, l):1;  }