C11112331312111112111133133313331333132212111133133313331322131111   >>    C1111233131211111211113313331333133313221211113313331333132213111   <<    C11112331312111112111133133313331333132212111133133313331322131113   >>      C11112331312111112111133133313331333132212111133133313331322131112   >>