C312312111111331312111133133313331322331333133313331323331323133313331313231   >>    C31231211111133131211113313331333132233133313331333132333132313331333131323   <<    C312312111111331312111133133313331322331333133313331323331323133313331313233   >>      C312312111111331312111133133313331322331333133313331323331323133313331313232   >>