50487ed9-b966-4abf-a59e-e548610a8f36 11 4 5 decimal

&[DATE] &[TIME] - &[FILENAME]

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n 100 :

parametrize
as you wish box 1 - 1 - 1 - 11111 - 1 - 1 - 52 mat :

BoxBlack i 1 n range j 1 n range Box i j el 0 : for for Box 21 line :

Hollow i 1 n 2 - (range j 1 n 2 - (range Hol i j el 255 : for for Hol 21 line :

iVBORw0KGgoAAAANSUhEUgAAAGQAAABkCAIAAAD/gAIDAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAADWSURBVHhe7dAxAQAwDMCg+je9PRXQ/CCBoXkcyApkBbICWYGsQFYgK5AVyApkBbICWYGsQFYgK5AVyApkBbICWYGsQFYgK5AVyApkBbICWYGsQFYgK5AVyApkBbICWYGsQFYgK5AVyApkBbICWYGsQFYgK5AVyApkBbICWYGsQFYgK5AVyApkBbICWYGsQFYgK5AVyApkBbICWYGsQFYgK5AVyApkBbICWYGsQFYgK5AVyApkBbICWYGsQFYgK5AVyApkBbICWYGsQFYgK5AVyAo2i5OZD6nsIgV+IAshAAAAAElFTkSuQmCC MyBox

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A B r c replace U A : i 1 B rows range j 1 B cols range U r i + c j + el B i j el : for for U 31 line : MyBox BoxBlack Hollow 11 replace : 21 line

box x 3 ^ 2 1 sys iVBORw0KGgoAAAANSUhEUgAAAGQAAABkCAIAAAD/gAIDAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAADWSURBVHhe7dAxAQAwDMCg+je9PRXQ/CCBoXkcyApkBbICWYGsQFYgK5AVyApkBbICWYGsQFYgK5AVyApkBbICWYGsQFYgK5AVyApkBbICWYGsQFYgK5AVyApkBbICWYGsQFYgK5AVyApkBbICWYGsQFYgK5AVyApkBbICWYGsQFYgK5AVyApkBbICWYGsQFYgK5AVyApkBbICWYGsQFYgK5AVyApkBbICWYGsQFYgK5AVyApkBbICWYGsQFYgK5AVyApkBbICWYGsQFYgK5AVyAo2i5OZD6nsIgV+IAshAAAAAElFTkSuQmCC MyBox

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box x 3 ^ 2 1 sys