C13223313311212111133133313331333132333133313331323131123313331122112322221   >>    C1322331331121211113313331333133313233313331333132313112331333112211232222   <<    C13223313311212111133133313331333132333133313331323131123313331122112322223   >>      C13223313311212111133133313331333132333133313331323131123313331122112322222   >>