C1111121111331311211331333133313331333133313231123313331333132323221   >>    C111112111133131121133133313331333133313331323112331333133313232322   <<    C1111121111331311211331333133313331333133313231123313331333132323223   >>      C1111121111331311211331333133313331333133313231123313331333132323222   >>