C312312111133131121333133313113313331333133313331333133313331333133322132311   >>    C31231211113313112133313331311331333133313331333133313331333133313332213231   <<    C312312111133131121333133313113313331333133313331333133313331333133322132313   >>      C312312111133131121333133313113313331333133313331333133313331333133322132312   >>