C111112111133131121133133313331323133313221131211113313221333113121   >>    C11111211113313112113313331333132313331322113121111331322133311312   <<    C111112111133131121133133313331323133313221131211113313221333113123   >>      C111112111133131121133133313331323133313221131211113313221333113122   >>