skip; x0 := read (); x1 := read (); x2 := read (); x3 := read (); y := ((((((x1(544-356>=x3-x0))>((864>192!!960+x0)<(179>=x2!!377*x3)))+(((241!!x3)>=(x1<594))*(469-x1<(916>=987))!!(627!!x0)>(x3<=x2)&&x3+671!=411-48)&&(((97*x1)*(x2==280)>=((x3>=x1)==x3+451))!=((x0&&679)&&623939!!69==107)&&(266&&x3)!=387-57)+((x3!!x0)+x0*x1&&(170-x0)+(71-752))))!=((908==44&&(909&&400))*((x2<=x3)>=x2+406)&&(916-x1)*(574-x3)<((x1<=499)!=(x3&&x3)))*(((x0*658>x1-859)>=(x1<698)*(903==203))<=((562>x1&&999==x3)>=(x2*789!=150*845)))-(((344*741)*(466-x1)<=((x1!=853)>(x3&&x2)))+((x1*666&&7>=358)!=((449((x1>x0&&(x0&&950))-((902>x0)<296+x2)!=((x3=(x1!=346))))))>(((((((167==686)<=(485<=x3))>=(374*x1!=410+x0))<(((196>=x1)<=x1+x3)<=((557>955)<=(x1!=476))))!=(((755&&619)<=(x0!!757))+((x1<870)!=(175&&x2)))*(((x0!!x2)>(x2!!x1))+(x3<880&&(847!!x3))))!=((((x3>=x3)<=(465>=x1))==(x3=175)-((234!!x2)+(x2>413))))>=((x2!=x2&&x1(x1>=x3))!!(x0+671(515&&59))!!((827<=x3!!x2-328)!!x1-x0<=x1+x1))-((((560=346!!x1*314)!=(x3+x1=358+369)<(((600<=705)<=486-157)>(586-361!=(335>=388)))))); write (y)