C1111121111331311211331333133313331211111333133313331331121333121122112323221   >>    C111112111133131121133133313331333121111133313331333133112133312112211232322   <<    C1111121111331311211331333133313331211111333133313331331121333121122112323223   >>      C1111121111331311211331333133313331211111333133313331331121333121122112323222   >>