C11112331333132311331333133313231333131133131211113313232111211   >>    C1111233133313231133133313331323133313113313121111331323211121   <<    C11112331333132311331333133313231333131133131211113313232111213   >>      C11112331333132311331333133313231333131133131211113313232111212   >>