The input is free format. Comments are enclosed between ( ), e.g. (this is comment only). The input should consist of an initialization part and a data part, separated by end_initia and ended by end_data
initialization
...
initialization
end_initia
data_item index data_values
...
data_item index data_values
end_data
Bold printed data in this manual can be used literally. Italic printed data is only symbolic (it represents a number or a word).