C31231211111133131211113313331323133313331311233132322331323132212111113232131   >>    C3123121111113313121111331333132313331333131123313232233132313221211111323213   <<    C31231211111133131211113313331323133313331311233132322331323132212111113232133   >>      C31231211111133131211113313331323133313331311233132322331323132212111113232132   >>