C1111121111331311211331333133313331333133313231333133313331333133112133313221   >>    C111112111133131121133133313331333133313331323133313331333133313311213331322   <<    C1111121111331311211331333133313331333133313231333133313331333133112133313223   >>      C1111121111331311211331333133313331333133313231333133313331333133112133313222   >>