C1111121111331311211331333133313331333133313231333133313331333131121131323121   >>    C111112111133131121133133313331333133313331323133313331333133313112113132312   <<    C1111121111331311211331333133313331333133313231333133313331333131121131323123   >>      C1111121111331311211331333133313331333133313231333133313331333131121131323122   >>