.sdnoces wef a nihtiw detcerider ton era uoy fi ereh kcilc esaelP
a nruter;)pot.b-mottob.c=b，
，mottob.b-pot.c=a，
，)a(r.siht=c(:)mottob.c=b，
，thgieh.b-pot.c=a(?c;)(tceRtneilCgnidnuoBteg.a=c，
，)(s.siht=b rav;1!nruter))htdiWtesffo.a==0||thgieHtesffo.a==0(&&f.siht!(fi;0!nruter)B==)A，
，a(q.siht(fi{)a(noitcnuf=p.]l[F;}p:]b[elyts.a?]b[elyts.a&&elyts.a nruter})b(eulaVytreporPteg.c nruter)c(fi;)d，
，a(elytSdetupmoCteg.weiVtluafed.f=c rav{)elytSdetupmoCteg.weiVtluafed.f&&weiVtluafed.f(fi;]b[elytStnerruc.a nruter)elytStnerruc.a(fi{)b，
，a(noitcnuf=q.]l[F
;}}thgieHtesffo.a+b:mottob，b:pot{nruter;)a(n.siht=b rav{)a(noitcnuf=r.]l[F;}b nruter;)b，x(etubirttAtes.a;)0，b(xam.htaM=b;))c(n.siht=+b(&&c;tneraPtesffo.a=c，poTtesffo.a=b rav;)0，b(tnIesrap nruter)b(fi;)x(]n[a=b rav{)a(noitcnuf=n.]l[F;}}b:thgieh，b+a:mottob，a:pot{nruter;thgieHtneilc.]m[f||thgieHtneilc.]g[f||thgieHrenni.e=b rav;)]h[]g[f=a(&&]h[]g[f&&]g[f:]h[]m[f=a?]h[]m[f&&]m[f:tesffOYegap.e=a?u==tesffOYegap.e foepyt;0=a rav{)(noitcnuf=s.]l[F
;}1!=f.siht;002=h.siht;0=g.siht;d=c.siht;a=o.siht;1!=b.siht;0=i.siht;][=a.siht{)a(noitcnuf=F，deepsegap.e=E rav;}{||deepsegap.e=deepsegap.e;crs=D，llorcs=C，evitaler=B，noitisop=A，crs_yzal_deepsegap=z，snoitcnuf_decalper_yzal_deepsegap=y，noitisop_yzal_deepsegap=x，daolno=w，no=v，rebmun=u，daol=t，gmi=s，atad=r，1=q，=p，etubirttAteg=n，ydob=m，epytotorp=l，poTllorcs=h，tnemelEtnemucod=g，tnemucod=f，wodniw=e，llun=d rav{)(noitcnuf(3 = dehcteferp_secruoser_mun_deepsegap_dom.wodniw;))(etaD wen(rebmuN = trats_hcteferp_deepsegap_dom.wodniw，
)(etaD wen(rebmuN = trats_deepsegap_dom.wodniw，