All you need to do is in the last for loop, make it go till j < i instead of j <=i.

where does it add one at?

you could try subtracting one

is that good or bad?

As for the line beteen the print statement and the input field, I'm not sure on that one. I'm not sure that there is a way to fix that.

Hey,
So you only need to declare Scanner once, and just use that one throughout the rest. So like in the beggining when you have Scanner input = new Scanner(System.in); just use input throughout...

Scanner 2ndinput = new Scanner(System.in); here you can not use a number as the first lette in the variable name. It can be the last though, or in the middle just not the first.

Also, the error...

First, in your first while() loop while ( p !=0 && 1 <= p <= 2000) You have to restate p every time so it should look like
while(p != 0 && 1 <= p && p <= 2000)