Problem: Add spaces: Sometimes,hehastoexplaintocolleaguesonhowtheycanhelphim."Youshouldn'tpushablindpersonastheymaylackconfidence.Youshouldtakethembythearmandtalktothem".

Spaces added: Sometimes, he has to explain to colleagues on how they can help him."You shouldn't push a blind person as they may lack confidence. You should take them by the arm and talk to them".
This text is missing some spaces, please add them: InSwitzerland,ispartoftheAlpssomehighmountaininSwitzerlandcalledMonteRosa4634m,4545mDomandMatterhorn4478mhigh.
In Switzerland, is part of the Alps some high mountain in Switzerland called Monte Rosa 4634m, 4545m Dom and Matterhorn 4478m high.
input question: Fix spacing: cooperatewithsurroundingareas.

output answer: cooperate with surrounding areas.
Problem: Pleasenotearelegalandtaxthings,currentchangesinlegislationandinternationalor.EUregulations.
What's a sentence that uses these characters?
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Please note are legal and tax things, current changes in legislation and international or. EU regulations.
Add spaces: Thecompanyisabouttostartseriesproductionofthenewmid-rangeradarsensor,whichisjustaspowerfulasitspredecessorbutmorecompactandconsiderablymoreaffordable.

Answer: The company is about to start series production of the new mid-range radar sensor, which is just as powerful as its predecessor but more compact and considerably more affordable.
This text is missing some spaces, please add them: ThebrickworksinBroagersubmittedaproposaland,aftermonthsofexperimentswithcoloursandfiring,thedelicate,pale-greybrickwasapproved.
The brickworks in Broager submitted a proposal and, after months of experiments with colours and firing, the delicate, pale-grey brick was approved.