C11112331312111112111133133313331333133313112113313331333133313331313213321   >>    C1111233131211111211113313331333133313331311211331333133313331333131321332   <<    C11112331312111112111133133313331333133313112113313331333133313331313213323   >>      C11112331312111112111133133313331333133313112113313331333133313331313213322   >>