import java.util.*;
import java.lang.*;
import java.io.*;
class Ideone
{
{
int n=-13; // ENTER INPUT VALUE HERE
if(n%2==0 || n==1)
{
System.
out.
println("INCORRECT INPUT , ENTER VALID INPUT"); }
else{
for(int i=1;i<=n;i++)
{
}
for(int i=1;i<=(n+2);i++)
{
for(int j=1;j<=(n/2);j++)
{
}
for(int j=(n-3);j>=(n-3);j--)
{
}
for(int j=(n-4);j<=n;j++)
{
}
}
for(int i=0;i<=(n-2);i++)
{
for(int j=1;j<=(i);j++)
{
}
for(int k=n;k>(i*2);k--)
{
}
}
}
}
}
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