C312312111111331312111133133313331333133322331323133313233231323331333132212321   >>    C31231211111133131211113313331333133313332233132313331323323132333133313221232   <<    C312312111111331312111133133313331333133322331323133313233231323331333132212323   >>      C312312111111331312111133133313331333133322331323133313233231323331333132212322   >>