C312312111133131121333133313113313331333133313331323223313221323131   >>    C31231211113313112133313331311331333133313331333132322331322132313   <<    C312312111133131121333133313113313331333133313331323223313221323133   >>      C312312111133131121333133313113313331333133313331323223313221323132   >>