C111113331333132322331333133313331331121111121133131133133313232223221   >>    C11111333133313232233133313331333133112111112113313113313331323222322   <<    C111113331333132322331333133313331331121111121133131133133313232223223   >>      C111113331333132322331333133313331331121111121133131133133313232223222   >>