/* package whatever; // don't place package name! */
import java.util.*;
import java.lang.*;
import java.io.*;
class Ideone
{ public static void tikkaQuestion(int n){
if(n>0){
int b=n-1;
System.
out.
println(b
+""+n
+""+b
); n=n-1;
tikkaQuestion(n);
}
}
{Scanner sc
=new Scanner
(System.
in); int n=sc.nextInt();
tikkaQuestion(n);
}
}
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