x0 := read (); x1 := read (); x2 := read (); x3 := read (); y := (((((x3<=16)-(109>=836)&&(x3!!x3)-(203>=751))!=((660>474)*(653<=x3))*((x0<=150)>(x1==x0))!!(((346>x1)>=(172==x1))<=((368&&11)>(x1&&x1)))>(x0==758&&x3<=101)-((456==350)<(x1==x2)))==((((701&&423)==(337!=x1))*(x1!=x0&&x0>987))*((x2-x0==(x1==x0))<=((913!=611)!=(438<=544)))!!((841&&x1)&&x1=(((((x2<=x0)==(x0>935))!=(794+667&&166<=x3))<(x0>=x1!!773(((x0>=x1)!=(x3>303))<(x1==x3)*(794<=x3)))&&((((x1&&x2)!=(459==x1))!=((962!=515)!=533-x3))<=((x1&&x1)-(0>=416))*((417>x0)-(x1>=449)))<((778*360-(552>x2))-(x3*969(x1-x1>=(x2!!79))))))*((((x1<=730&&x2>x1!!(x0&&x0)&&513+69)<=(424&&93!!642>495)+(528*x0>x0-x0))-(((979<=x3)+304*x2!=(270+519>=(2>=925)))>=((x1-719!!265<=x0)&&(615==491)>(892>x0)))>=((((x0<=x3)-(x0!=x0))+(x0(((x2-x0&&x0*408)>((542!!x0)<=(x3!=596)))==(((x2<=x2)<=x2-187)>((723!!790)!=(38&&x3))))))+((((((17&&x0)<(481<=326))!=(625+517>(114<=x2)))>((710-863)+576*x0<=((672>649)<(243==x0))))>(((x0>=765)<=x1-667&&(x2<=689)-(x2!=683))&&(x0>=556)*(x2<=469)<((31>=x0)==(777!=x1))))>=((((x1>343)*(983!=x2)>=(468*786<(887!!x3)))==((x3(900<=6)))!=(((434>=141)==(x0!=x3))-((879==523)-(x1!=872)))-(((x0!!845)<(x0&&x3))-(x3-x2