Q: Remove the spaces from the following sentence: The ideological struggle waged by revolutionary Marxism against revisionism at the end of the nineteenth century is but the prelude to the great revolutionary battles of the proletariat, which is marching forward to the complete victory of its cause despite all the waverings and weaknesses of the petty bourgeoisie.
A: [TheideologicalstrugglewagedbyrevolutionaryMarxismagainstrevisionismattheendofthenineteenthcenturyisbutthepreludetothegreatrevolutionarybattlesoftheproletariat,whichismarchingforwardtothecompletevictoryofitscausedespiteallthewaveringsandweaknessesofthepettybourgeoisie.]

Q: Remove the spaces from the following sentence: You should also make sure you call your doctor as soon as possible if your headache is accompanied by a stiff neck.
A: [Youshouldalsomakesureyoucallyourdoctorassoonaspossibleifyourheadacheisaccompaniedbyastiffneck.]

Q: Remove the spaces from the following sentence: Crop circles - Chemical effects of lightning.
A: [Cropcircles-Chemicaleffectsoflightning.]

Q: Remove the spaces from the following sentence: Children from 2 to 17 years old can join Finnair Plus Junior.
A:
[Childrenfrom2to17yearsoldcanjoinFinnairPlusJunior.]