Why does my Loop end after 11 Loops?

[bplus]

@Bplus and @SMcNeill
in some your posts I read 

Code: (Select All)

INPUT DataItem(i)

but I think it is pseudocode to say

Code: (Select All)

INPUT #1,DataItem(i)

Please confirm this.

Yeah, Steve's missing #1,  we want file input not user input.

That's what happens when work in pseudo-code.