C312322331333132212111133133313331323133313221211111211111323221211113311223231   >>    C31232233133313221211113313331333132313331322121111121111132322121111331122323   <<    C312322331333132212111133133313331323133313221211111211111323221211113311223233   >>      C312322331333132212111133133313331323133313221211111211111323221211113311223232   >>