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key-controlled data
key-controlled data
(et cetera...)
END INPUT
The ordering of keys in input is free and has no consequences. (There are a few exceptions to this; these will be mentioned later).
All numerical information is 'free format': the absolute positions of numbers and the format of reals is irrelevant.
In most cases lowercase characters and capitals can both be used and the program will not discriminate between them, except in filenames. However, this aspect has not yet been carried through fully. So it is advised to use capitals only (except in file names).