C11112331312111112111133133313331311331323212331333133312113313232321   >>    C1111233131211111211113313331333131133132321233133313331211331323232   <<    C11112331312111112111133133313331311331323212331333133312113313232323   >>      C11112331312111112111133133313331311331323212331333133312113313232322   >>