C111113331333132322331333133313331331121111121133133313121133113323321   >>    C11111333133313232233133313331333133112111112113313331312113311332332   <<    C111113331333132322331333133313331331121111121133133313121133113323323   >>      C111113331333132322331333133313331331121111121133133313121133113323322   >>