This text is missing some spaces, please add them: 21ThenJoabsaidtotheCushite,Goandgivethekingwordofwhatyouhaveseen.AndtheCushite,makingasignofrespecttoJoab,wentoffrunning.
21 Then Joab said to the Cushite, Go and give the king word of what you have seen. And the Cushite, making a sign of respect to Joab, went off running.
input question: Fix spacing: Addtheproducttoyourcartbyclickingthe'ADDTOCART'button

output answer: Add the product to your cart by clicking the 'ADD TO CART' button
Problem: Thisisindisputableinrelationtothepresentwar.
What's a sentence that uses these characters?
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This is indisputable in relation to the present war.
Add spaces: Ekspert&Special500cc.1heatwithrollingstart

Answer: Ekspert & Special 500 cc. 1 heat with rolling start
PrimeMinisterLarsLkkeRasmussen'sOpeningAddresstotheFolketing(DanishParliament)on6October2015

Prime Minister Lars Lkke Rasmussen's Opening Address to the Folketing (Danish Parliament) on 6 October 2015
Add spaces: IfyourPCopenstheABOUTITfile,butit'sthewrongapplication,you'llneedtochangeyourWindowsregistryfileassociationsettings.Inotherwords,WindowsisassociatingABOUTITfileextensionswiththewrongsoftwareprogram.

Answer:
If your PC opens the ABOUTIT file, but it's the wrong application, you'll need to change your Windows registry file association settings. In other words, Windows is associating ABOUTIT file extensions with the wrong software program.