C312312111111331312111133133313331333133322331323133313221333223231   >>    C31231211111133131211113313331333133313332233132313331322133322323   <<    C312312111111331312111133133313331333133322331323133313221333223233   >>      C312312111111331312111133133313331333133322331323133313221333223232   >>