/* 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
{
{
// your code goes here
int i, j, n;
n =-3;
if(n<0 || n==1){
}
if(n%2==0 ){
}
for(i=0; i<n/2-1; i++){
for(j=0; j<n+2; j++){
if(j==0 || i==0){
}
else
}
}
for(i=0; i<=n/2+1; i++){
for(j=0; j<=(n/2+1)-i; j++) {
}
for(j=0; j<2*i-1; j++) {
}
}
}
}
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