C312322331333132212111133133313331333133312121111331333132333133313112113121321   >>    C31232233133313221211113313331333133313331212111133133313233313331311211312132   <<    C312322331333132212111133133313331333133312121111331333132333133313112113121323   >>      C312322331333132212111133133313331333133312121111331333132333133313112113121322   >>