x0 := read ();
x1 := read ();
x2 := read ();
x3 := read ();
y := (((((x0!!x2)<(x0==882))>(x3>78)*(x2-x2))*(((218!=400)>=(x3<522))>=(x1-x1<=(453==x2)))&&(((x1&&565)==x1-x3!!(271!!596)==446-x1)&&(x3<=x2)-(x3!=720)<=((825<x3)<(x1>991))))*((378+x1>(x0!!x3))*((x0<=x0)!=83+x3)>=(((321<x1)==123-758)>=(251<=x0)-(21!=355))&&((490&&950)>=(509&&185))-((78<x2)>=(476<528))<((399-x1)+(169&&x2)>(x2==x3)+x2*860))-(((((351+x2>(710==93))==((x3!=6)<=(693>947)))>(((127>=x1)<=x2+x2)<((x1<x2)==(957>x0))))<=(((x1<756)-(x3<126))*((426+825)-(x0+x2))<=((x1<135!!(x3!!x0))==((280>=539)<=x0*x2))))-((((x2<=111)==(722<=363))<((x0<=375)<=789-x2))+((x0!=667)<(x2&&x2))*((x3>330)>=(x1!!x0))<=(((58-442!!x2>870)==((x3&&163)<(x0>x2)))<=((878<=x1)*(197<719)!=(x2<=x2)-(x1&&x3))))))*(((((416>=556)!=x1+x2)-((x1&&508)==998+698))+(((66<x3)!=(x3!=x0))!=((x2!!x0)==(x3==140)))!!((x2+184>(210>=653))+(999+x2==(x1!!x3)))-(((11==389)!=665-x1)>(684>777)-(131<=36)))*(((((389!!70)>x2*x2)<(994<=x2!!x3-x2))<(((x0!=389)==(x0&&795))!=((616!!766)<=(x1!!454))))==(((x2>327)>=(x0!!291))+((49==x1)!=(x1!=x0))==((x2!=342)*(293>=358)<(x3<356)-(x0!=x1))))-((((x2-550!!101&&22)>((x3<=x0)>=(x3>x1)))-((95!=704&&734==464)!=((x0!!x0)&&249<=x0)))*((180+513<=(616==x2))-(x3*750<(x2!=x1))<=(((557!=658)>=x3*x3)<((198>x3)>(x3&&x1))))==((((x3==255)<(788==x1)!!(86<980)==(x0>x2))!!(411+x3>=(172&&88))*((x3-x0)*(x0*42)))&&((x3+x3>=(x0!!x3))<(x0*705<=(x3>=x2))!!((x3<x1)<(x0<x0))!=(76>x0)*(x3>=x0)))));
write (y)