C312322331333132212111133133313331333133312121111331333131333233321   >>    C31232233133313221211113313331333133313331212111133133313133323332   <<    C312322331333132212111133133313331333133312121111331333131333233323   >>      C312322331333132212111133133313331333133312121111331333131333233322   >>