C11112331312111112111133133313331333133313122111133133313113313221313221   >>    C1111233131211111211113313331333133313331312211113313331311331322131322   <<    C11112331312111112111133133313331333133313122111133133313113313221313223   >>      C11112331312111112111133133313331333133313122111133133313113313221313222   >>