C1111133313331323223313331333133313113313112113121111332213231221   >>    C111113331333132322331333133313331311331311211312111133221323122   <<    C1111133313331323223313331333133313113313112113121111332213231223   >>      C1111133313331323223313331333133313113313112113121111332213231222   >>