C112313233211113313121111331333133313232233132313331311211323231   >>    C11231323321111331312111133133313331323223313231333131121132323   <<    C112313233211113313121111331333133313232233132313331311211323233   >>      C112313233211113313121111331333133313232233132313331311211323232   >>