def get_hand_index_ranges(lines):
    """Return a list of hand start and end indicies"""

    hand_start_indices = []
    for i, line in enumerate(lines):
        if "-- starting hand #" in line:
            hand_start_indices.append(i)

    hand_end_indices = []
    for i, line in enumerate(lines):
        if "-- ending hand #" in line:
            hand_end_indices.append(i)

    return list(zip(hand_start_indices, hand_end_indices))