C11112331312111112111133133313331333133313331333133313231333131223231   >>    C1111233131211111211113313331333133313331333133313331323133313122323   <<    C11112331312111112111133133313331333133313331333133313231333131223233   >>      C11112331312111112111133133313331333133313331333133313231333131223232   >>