C312322331333132212111133133313331323133313221211111211111313232212321   >>    C31232233133313221211113313331333132313331322121111121111131323221232   <<    C312322331333132212111133133313331323133313221211111211111313232212323   >>      C312322331333132212111133133313331323133313221211111211111313232212322   >>