C1111121111331311211331333133313331323132322331323133313232313221   >>    C111112111133131121133133313331333132313232233132313331323231322   <<    C1111121111331311211331333133313331323132322331323133313232313223   >>      C1111121111331311211331333133313331323132322331323133313232313222   >>