skip; x0 := read (); x1 := read (); x2 := read (); x3 := read (); y := (((((x0!=x2)-(x1=(x3*x1<=(x2&&x3)))+((x1<559)-(x3!!x1)==((547==x2)==869*x0)))*(((155-x2==(53369)<=(x0==269))<=(371-x2!=(784>599))))!!(((357!!430)!!302==350)*(0&&286!!400((x1>845)>(238>=563))!!((245-x1)+(124>=x2))*((x0>928)!=(889>=716))))>(((x3>=x2)*(x3=x3)-(571&&x0))+(((x2<150)<(824>x2))!=((135&&930)>=152*862))<=(((x1(x1<544)!!(11>=x0)<(x0>x0))))*((((862+x1>(x0<708))!=((790<615)>(x3>=971)))<((x2-x0)*(x3+x2)>(x2-x2>=(900==x0))))*(((939>=687)<562+x3)>((118!!732)==(188<=293))!!(x1&&760)+(x1x2*960+(789&&811))))+(((x1*x3+(x0!!x3)>=(423&&454!!x1+x3)!!((270x0*321)<=((x2>x2)!=(202>=x3)))!=(935*935-(479!!x2)<=((x1!=x3)<=x3+581)&&(x1!!910)+(x2+44)>(x0-x1&&x1<496))!!((x2!=409)*(x0-265)==(94>448)-(326!=882))-(((x0&&x3)>=x3-x2)<(x2<16&&133*x2))>((((50&&882)!=(893>=249))==((x0>=x3)<=(84>=13)))<((x3>823!!5&&x2)&&(x0!=x0)>(x1!!x3))))&&(((x0&&609)<=(x0<=x2))>=(714*528)*(x019)*(227+597))-((x2*446==(x3==x3))*(x1!=484!!881!=x2))*((x2!!774)*(963==720)==((x0>=690)>(807!=x1)))<(((x3&&426!!988<421)>(x0-613)-(59-x2))>=(((537!=56)!=(935>x2))!=((572>=670)>(x3!=218))))+((667&&x2)*(x2>x0)<((x3&&794)>=(x0&&x1))&&(60>=915)*(x1!=x0)+((235==x3)<(196