skip; x0 := read (); x1 := read (); x2 := read (); x3 := read (); y := (((((807+x2&&271==x1)!=((x0==62)<=(x1685)-(35>x2))-((x3(x3&&x0)!!((599>=x3)<(31980))<=((x0<=x2)*(x0*x2)!=(x2*x2)*(888!!x1)!!(x0-x1)+(228x3)*(282!!x2)==((131==x3)>=(697<=279)))-((38!=640)*(598-x0)+((253<=x2)<=(202>=515)))))!=(((((695!!69)<172+164)==((x0=(785=((744>=x1)<(x0<217))))!=(((x3!!331)x3)!!((850>874)>=22+571)>=(380-773)*(363>=824))!!(((932-x0!=(x0<=x3))==((x0795))&&((x0==x2)==(467!=329))-((x3>=x0)!=233-x0)))!!(((((784<=x3)*(x0<467)>=(898-x0==x3-675))>=((x1&&230)>=(51!=641)&&104*x1<=(929<=x1)))>=((x0-131!!(x0!!232))+(x1-x0<=(x3!=x1)))-(((x0&&x1)<(965!=x2))!=((x3>780)!=(82>344))))<=(((x2-509>=(578<165))<(382-x1>x0*x2)&&(x1>743)+(743<=909)!=(183*591!=(x3&&227)))&&((x2!!x1)<=(27!!x3))-((x0<877)-(x0!!178))>((x3==x3)>(647>379))+((821!!809)-(784+269))))>=(((((x1>=x0)*(x1!!x0)!=(743*535>(758&&x2)))>(((x1>123)<(x0&&971))>=(515+821<=(438<=590))))<(((851<=459)+(x1&&x0)!!(318<709)<=(297!!x1))&&((842&&391)298)!!(((x1>=128)<=(706<=192))<(728*x1!=(306!!x2)))-((993<=x2)-(478>x2)<=((246!=511)<=x2*x2))))); write (y)