C11112331312111112111133132313331333133313232212111133223332311   >>    C1111233131211111211113313231333133313331323221211113322333231   <<    C11112331312111112111133132313331333133313232212111133223332313   >>      C11112331312111112111133132313331333133313232212111133223332312   >>