read (x0);
read (x1);
read (x2);
read (x3);
y := (((((((x0>=443)>(254<=447))>=(808*541==(x2==x1)))<=(902+x3==x2*x2&&(x2+x2&&(x0&&600))))==((574!=x3)*(x2>170)+((536&&973)-(x3>x3)))-(((x0!=x2)<=(548!=x0))<=((x1!!520)==(x3<x0))))<((((x1<x3)==(385>=606))==((x0>x2)<=(x3==x1)))+(((189!!x3)>(x3<x0))<((x1<x1)!=(307!=x2)))>=(((x3<x3)<=(x3==10))>((x2!=x3)<=(876>=79)))*(((480!=x2)!=178-x1)==((911<925)>(x3!!2)))))!=((((x1<=786)+(x3-867)<(x0+x3!=(707<=x3))!!(353+x2<=(x1>=326))>=(276!!167)*(604>=217))==((x3>382!!x0<=x2)+((286!!363)-(x0!!x3))!!((57!!817)<(143<481))>((224<449)>=524+743)))>(((x3-692)+(293>=556)==(774-485)*(x3<=x2))-((833>834)<(871>=x1))*((x0!=306)>(409>=139))==((((56>=x0)!=745*161)<=((196<441)>=(x1==426)))!=((105>503)-(x0>x2)<(x3>=348)+(x2!!628))))))-(((((x1<80)+(x1<=x3)<=((x2>757)>=(x3!!x0)))>=(845+959&&x3>742)*((x0-976)-(x0<=x1)))<=((x1<476&&(x2!!x1))>((x3!=462)>=(x0==678)))*(((x0==x3)+(x0+513))*(21!=281&&(830&&x2))))>((((x2>=763)<x3+901)>(215-173>=(965<152))&&756*921-(244<=909)!=(x1>894&&x3+801))>=((477+168>=(x3>=x0))-(585!=x2!!x3<=x2)<(x1+768&&(527&&x2)!!644-x1>=(173!=633))))&&((((372==671&&851-802)>((x1>=196)!=(x3<=166)))<(((857>211)<(x2!!866))!=((163&&241)==(x3<=x0))))!=((((648&&x1)<=(339!!x3))>=(473&&361)-x3*x2)>((879!=141)+(55==571)!!(x3!!x0)>(774!!x1))))*((((x3*x2&&x0!=965)<=(x0>97)+(604==729))-(((x1>=926)<x3+290)+(200!=493&&738-966)))-((((x2<=567)==x1+x0)-(x0!=799!!277<596))-((x2>=630)+(x0&&917)==((495>=x0)>(x3!=844))))));
write (y)