C112313233211113313121111331333133313232233132313331311331323112113313331322231   >>    C11231323321111331312111133133313331323223313231333131133132311211331333132223   <<    C112313233211113313121111331333133313232233132313331311331323112113313331322233   >>      C112313233211113313121111331333133313232233132313331311331323112113313331322232   >>