C312312111133131212111133133313231333133313331333132313331311331333132322121311   >>    C31231211113313121211113313331323133313331333133313231333131133133313232212131   <<    C312312111133131212111133133313231333133313331333132313331311331333132322121313   >>      C312312111133131212111133133313231333133313331333132313331311331333132322121312   >>