var y; var x0, x1, x2, x3; x0 := read (); x1 := read (); x2 := read (); x3 := read (); y := (((((x2!=153)!=(x3((915=x1)+(x1-x3))-(((x1<=490!!(x3!!x2))!!x3+394<(x0208)-(613<=x0))*((945!=513)>=(506<=x1))+((x3<=x1)-(x2<=274)&&((x1&&598)&&592=910*x0)<=((x1&&359)+757*687!!x3-x2=58)))<=((((x1!=490)>(x1!!672))>(x1==79)*(700<=294))==((x1==x2)-(x3!=x0)<=((x2>=405)<=(x3==560)))))-((((x1+x2)-(683!!787)>(x0==x1)-341*701)<((715-706<=20+303)>(x2<=600)-(x2+x2)))<(((x1x0!!999>688)&&217+599<(641<602)))))<(((x3*574<(428>=225)&&(x1<=x2)>=x1-867)*((779<=717)*(x2!=252)<((x0<=776)<955-426))>(((854>x1)*(364>320)!!(470!=x3!!(x3!!991)))>=((x1*x0>(x1&&326))<=(x2-138>(503==414)))))+((((x0<=487!!294-x1)>=((712&&x3)<=(x2!=44)))>=(((749!!841)==(x1>442))!=(x3*x0)*(x3*439)))<=((((x3!=x1)<(214<=872))<(44==x0)*(x0<=323))>((x3!!391)>=643-55)*((x3+x1)+(x0==383))))<(((((800+448>(948<301))>=(782*x1!=(962&&639)))>=(x0*187!!456-x0)+((234!=28)-(386&&x2)))<(((x0<=381)>=358*85&&(x3<633)!=x2+x1)>=(945<=x0!!x1-613)-(171+x0==x2*x0)))>(((x1-451)*(300<=780)&&(75*x1&&380<573))+(((986>=134)!=(x2<=x0))<=((x0!!554)<(676&&x3)))>=(((x3+210)-x1*x2)-((x2&&676)-(x1(x3