C1111121111331311211331333133313331333133313231333133313331331123232212311   >>    C111112111133131121133133313331333133313331323133313331333133112323221231   <<    C1111121111331311211331333133313331333133313231333133313331331123232212313   >>      C1111121111331311211331333133313331333133313231333133313331331123232212312   >>