def _n_to_state_data_map(state_lines_data):
    """Returns a map from
       N (state index) -> State (list of state line data)
    where N uses the convention of the *.lpt files (beginning at 1 instead of
    0)
    :param state_lines_data: list of state line data
    """
    nb_map = dict()
    for cbl in state_lines_data:
        nb_map[cbl[0]] = cbl[1:]
    return nb_map