/* package whatever; // don't place package name! */
import java.util.*;
import java.lang.*;
import java.io.*;
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
{
Scanner sc
=new Scanner
(System.
in); int n=sc.nextInt();
if((n%2)==0||n<3){
System.
out.
print("Invalid Input Numbe");
}else{
for(int i=0;i<((n+2));i++){
}
int space=n/2;
for(int i=0;i<=(n/2);i++){
for(int j=0;j<1;j++){
}
for(int j=space;j>0;j--){
}
for(int j=0;j<=i;j++){
}
for(int j=0;j<=i;j++){
if(j==0){
}else{
}
}
space--;
}}
}
}
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