C11112331312111112111133133313331333132323213331333133313133132321   >>    C1111233131211111211113313331333133313232321333133313331313313232   <<    C11112331312111112111133133313331333132323213331333133313133132323   >>      C11112331312111112111133133313331333132323213331333133313133132322   >>