- /* package whatever; // don't place package name! */ 
-   
- class Main{ 
-   static int c(int n){ 
-     return n > 0 
-               ? n - c(c(c(n-1))) 
-               : 0; 
-   } 
-   
-   public static void-  main (String[]-  a ){
 
-     for(int i = 0; i < 21; i++){ 
-       System- . out- . println(- i  + ": " +-  c (- i ));
 
-     } 
-     System- . out- . println("1000: " +-  c (1000));
 
-   } 
- } 
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