x0 := read (); x1 := read (); x2 := read (); x3 := read (); y := ((((15!!114)!!(x1!!x3))-((91+702)-(558!!404))&&((844=((578!!253)<=(501!=81)))==(((x3*x0&&313!=452)<(144-x2&&x2+914))!=((150+x1)*(x0==939)>=(921*627>(x1(42-x3)*(x0>x0)-((x2!=x3)==(x2&&941)))+((x2>=776)-(338&&x2)==((247>x3)>(x1&&x0))&&(104&&210)+(x3+x1)!=((342>=948)>(x1>=x3))))<(((((187>x0)>x2-x2)<(x3==859&&945==x2))<((492==x1&&457==51)<=((894&&670)==(131>x0))))-((x1>x3!!766>=33)*((x0>=980)<=(x3!!x3))<=((167!!x1)!=(x1&&745))*(x0==x1&&x3<=718))!=(((641!=523&&(448!!332))-((x1==x0)<(x0>=424))&&(451+988)*(x0-x0)<((x2&&x0)<=(x1==x2)))!=(((339&&x2)&&(780!!156))&&(x1!=71)*(852!!548))*(((x3>=13)==(247<643))*(x3-x3>(x1!=x3)))))&&((((993!!672)-(x2==x3))*(198*x3==(193<=x1))!!(((412!!x1)!!22==355)!!(x0==x1)>=(412!!588)))*(((294<250&&250>=x0)==(933-492)*(x0-614))>=(278-745>(20<720)&&(x2==631)-(634==x1)))&&(((998!!652)!=207*643)*(75=x0)*((290>653)!=(575!=910))>((x0==486)<=(578<=x2))+((812=(88!=43)&&(3&&x2)*(x3>338))&&(x3+x1>673-780)>=((893!!527)<=x1-x2))<((((x3<977)==(119==918))<((x3>953)<(854==x2)))==(x1-469==197+x3)-((x2<=970)-(115!=952))))>=(((x3==x0)==(120>=x2))!=(604*588&&x1x1)>(268>=x1))<=((x3==x0)<=(x0=(x1<=x3))+(79*853<(386=19)>(x1>31)+(x2