C312312111133131212111133133313231333133313331333131211111333133313331313221131   >>    C31231211113313121211113313331323133313331333133313121111133313331333131322113   <<    C312312111133131212111133133313231333133313331333131211111333133313331313221133   >>      C312312111133131212111133133313231333133313331333131211111333133313331313221132   >>