C11112331312111112111133133313331333132323213331333133313331331121111132222321   >>    C1111233131211111211113313331333133313232321333133313331333133112111113222232   <<    C11112331312111112111133133313331333132323213331333133313331331121111132222323   >>      C11112331312111112111133133313331333132323213331333133313331331121111132222322   >>