C312312111111331312111133132313331333133313331313331333133313231333132322121221   >>    C31231211111133131211113313231333133313331333131333133313331323133313232212122   <<    C312312111111331312111133132313331333133313331313331333133313231333132322121223   >>      C312312111111331312111133132313331333133313331313331333133313231333132322121222   >>