C11112331312111112111133133313331333132312331333131323132331121   >>    C1111233131211111211113313331333133313231233133313132313233112   <<    C11112331312111112111133133313331333132312331333131323132331123   >>      C11112331312111112111133133313331333132312331333131323132331122   >>