( my $line = ( join "", <>  ) ) =~ s/\n\s+//g;	
print $line;



______DATA_______

firstline54324563213612531436436463246324634
         secondlidfndsfdsfdsfd
         thirdlinedsfsdf
firstline54324563213612531436436463246324634
	 	secondlidfndsfdsfdsfd
         thirdlinedsfsdf
         fourthlinedsfsdf
         fifthlinedsfsdf

_____OUTPUT______

firstline54324563213612531436436463246324634secondlidfndsfdsfdsfdthirdlinedsfsdf
firstline54324563213612531436436463246324634secondlidfndsfdsfdsfdthirdlinedsfsdffourthlinedsfsdffifthlinedsfsdf