C1111121111331311211331333133313121111331322133313231333132213112233311   >>    C111112111133131121133133313331312111133132213331323133313221311223331   <<    C1111121111331311211331333133313121111331322133313231333132213112233313   >>      C1111121111331311211331333133313121111331322133313231333132213112233312   >>