General notes

Input file consists of keywords followed by parameter(s) Lines beginning with ``#`` are considered as commentaries. Keywords are case sensitive. Lines which are not recognized as keywords are considered as commentaries, but a warning is given in the output if the first symbol of such line is not ``#''. The order of keywords is almost unimportant. The only exception is that the information on the number of molecular types (keyword Mol_types) should be given before any keyword involving reference to specific molecules and molecular types. For missing keywords, default values are used. Repeated reading of the same keyword overwrites its previous value