C11112331312111112111133133313331333133313331333133313331333131211331313313231   >>    C1111233131211111211113313331333133313331333133313331333133313121133131331323   <<    C11112331312111112111133133313331333133313331333133313331333131211331313313233   >>      C11112331312111112111133133313331333133313331333133313331333131211331313313232   >>