C11112331312111112111133133313331333132322121111331323312113313223331   >>    C1111233131211111211113313331333133313232212111133132331211331322333   <<    C11112331312111112111133133313331333132322121111331323312113313223333   >>      C11112331312111112111133133313331333132322121111331323312113313223332   >>