C312322331333132212111133133313331333133312121111331333113121312321   >>    C31232233133313221211113313331333133313331212111133133311312131232   <<    C312322331333132212111133133313331333133312121111331333113121312323   >>      C312322331333132212111133133313331333133312121111331333113121312322   >>