########################################################################
#
# Process input data to return the appropriate records or data format.
#
# For this puzzle, the input data will be a 4-item tuple:
#     `(tracks, carts, next_turns, width, height)`
# - `tracks` holds the tracks of the puzzle as a single string (with the
#   first `width` characters holding the first row of the puzzle, etc).
#   Any place in the original puzzle input which held a cart is replaced
#   by the track that underlies it.
# - `carts` holds the carts from the puzzle in a string the same size as
#   `tracks`.  Each location of the original puzzle that has a cart will
#   have a track in `tracks` and a cart direction (^/v/>/<) in `carts`;
#   all other locations will have the original puzzle content in `tracks`
#   and a space in `carts`.
# - `next_turns` holds the next turn direction for each cart in `carts`,
#   with each cart starting out with a next turn of `1`.  Any location in
#   `carts` which does not hold a cart will have a space in `next_turns`.
# - `width` and `height` are the number of columns and number of rows,
#   respectively, in the input data.

process_input_data = lambda input_data: (
            input_data
                .replace('\n', '')
                .replace('<', '-')
                .replace('>', '-')
                .replace('^', '|')
                .replace('v', '|')
            ,
            input_data
                .replace('\n', '')
                .replace('-', ' ')
                .replace('|', ' ')
                .replace('+', ' ')
                .replace('\\', ' ')
                .replace('/', ' ')
            ,
            input_data
                .replace('\n', '')
                .replace('-', ' ')
                .replace('|', ' ')
                .replace('+', ' ')
                .replace('\\', ' ')
                .replace('/', ' ')
                .replace('<', '1')
                .replace('>', '1')
                .replace('^', '1')
                .replace('v', '1')
            ,
            len(input_data.split('\n')[0]),
            len(input_data.split('\n'))
        )