x0 := read (); x1 := read (); x2 := read (); x3 := read (); y := (((((x2!!x0)&&525<=x0)*((x2!=19)+(443>235))!=((567!=x0)-(273!=431))+((363(((736>=144&&14<=502)<=(x3==894)-(352==363))==((722!=186)*(606-10)<=((x2==459)!=(994==x3)))))+(((x3!=618)+(x2!=x3)!=((x2&&151)<=(x1&&717)))+((608-800!=555+707)<(530=x2)))*(((973*x3>=x3-x1)>(x2-32<(638>x2)))>((344>=44&&359>927)<(211&&x1)*(13==891)))!!((824&&408!!927>=11)*((x0=x2&&(x3&&x0)))!=((701*848<=(401!=x0))!=((x3!=454)==(174&&x2))))<=(((640>=408)<=(x3=(x1!=454))!=((x1!!378)&&771<=x2)!!((517>=331!!3*146)&&(674<101!!x0-458))+((x1!=221&&(x1&&x1))>((157>x0)==554+x3))))&&((((332<813)*(x3>=80)-(270-x3==(x3==x2))>(((x1<726)>=230+x3)!=(945+x3!=929+x3)))>(((x0!!758)-(x0!!x0)==(x1&&10!!x1>=193))>=((x2<127)*(206&&37)>((23!!758)<=(361!=x0)))))-(((((x1>=787)>(109!=x2))<=(x1==x2!!x1-993))!=(((738&&762)>(x1&&x3))>((x3!!x0)!!x3>=x0)))==(((994!=520)!=(610>=x1)&&(x2>=389)*(x1>x1))!=((x1!=x1!!(x2!!62))&&(335-490&&486-867)))))-(((((x1=204)!=(x2>=x0)-(126!!819))==(((678<=760)>=x2*x0)==((x1==325)<=667+830)))==((x0*280<=(354>901))+((719&&x3)>=(x3<=x0))==(((842!=x0)>(x2==354))>(x0-x0&&x1>x1))))+((((672!!x1)<(x2!!x3))*((630<567)==x2*315)>(((923=((x3!=113)<=(x2>95))))<=((349>x0)+(x1==x2)>((549==x3)!=(x3&&20)))-(((x0-555)-(x1<=86))+(789