C1111121111331311211331333133313231333132211312111133132311312111133112233311   >>    C111112111133131121133133313331323133313221131211113313231131211113311223331   <<    C1111121111331311211331333133313231333132211312111133132311312111133112233313   >>      C1111121111331311211331333133313231333132211312111133132311312111133112233312   >>