C312312111111331312111133132313331333133313331313331333133313331323223313232221   >>    C31231211111133131211113313231333133313331333131333133313331333132322331323222   <<    C312312111111331312111133132313331333133313331313331333133313331323223313232223   >>      C312312111111331312111133132313331333133313331313331333133313331323223313232222   >>