x0 := read ();
x1 := read ();
x2 := read ();
x3 := read ();
y := ((((x0!!x2)>(x0<=x1)&&x0*15>=(643<=445)!!((147!=704)>506*x2)>(x0+x3!!(800!!x0)))*(((221==649)<=21-299!!(x3-854)+328*15)<=((x2<=138)>=(623<=x3))-(170*714<=(x0&&153)))>=((((191<=145)<=x2+x0)!=((802>303)<(562>=609)))!=(((x1<x3)<(x2>=x0))<=((x0==763)==x1*435)))+((((871!!826)<=(311&&x3))<(x0&&x1!!x2<x3))-(((153<413)>=x2-753)>(x1-50<(x0&&x3)))))!=((((596>=x3)>(x0>x2))+((x1-x1)-677*x2)>((x0>x3)*(817+x0)<(x3-441&&927!=x0)))+((x1>568!!161>x0)*(x0*216!!117+x3)<=((x0>=426&&x3!=18)!=(260==x2&&503>990)))>(((769==x0!!x3*101)>=(x3-162)*(x2<x1))+((x1!=655)==(x0&&108)!!(211<=x2)!=(86<142))<=((x2*x3<(685&&137))>=(117+x1>=124-x0)&&(694>=120!!(x2!!x3))<=((x0&&707)&&(x1&&x2))))))-(((((x0!=328)==(x2>506)!!x2-424&&x0!=613)!=(782*677<962-962)-(649*686)*(527!=262))>(((x1>514)<(966!!x3))>(177&&984)*(607!!x3))+(((439-500)+(336<x3))-((x1>=302)>(831<=83))))==((x2+63)*(x2>=x3)>=((x3<x0)==(x1>=x2))!!(x2!!x3)*(x2>=x0)<(x1!=x1!!(x1!!831)))-(((927!!x0)<x2-723)-((932!=x1)>=(616==x2))<=(((x2==845)<=529-x2)<(x0+x2!=(674>=383)))))*((((307<=295!!x3*898)<(443<x2!!451&&x3)!!((369+372)+(312+x1))*((x3>=x2)*(993<=63)))==((((850<=496)<(491!!849))<((x0<=x0)<=216*x1))!=(((105==723)!=(x2<712))>((x3!!875)&&x3>x0))))==((((762&&492)*(346*403)!=(522&&307)*(x1<x3))!=((285&&x1)-(795<779)&&(415<=898)!=(x1>x0)))>=((57-749<(917>x0))-(x2*x1!!875==474))-(((x3!!124)<=(810==x3))!=949*98-(105-799))));
write (y)