C1111121111331311211331333133313331323132322331323133313231333133313222122311   >>    C111112111133131121133133313331333132313232233132313331323133313331322212231   <<    C1111121111331311211331333133313331323132322331323133313231333133313222122313   >>      C1111121111331311211331333133313331323132322331323133313231333133313222122312   >>