x0 := read (); x1 := read (); x2 := read (); x3 := read (); y := ((((86<=x3)+(535&&x3)==(x3+x2)+(x1+173)&&((x3=(x3>=403)))*(((x0!=175)+(x3=x2)<=(x3>770&&(453&&97)))!=((948>730)*(859+x3)<=(657>367!!x0!=22)))-((x1+x3==399+x2)>((x3<180)!=258-75))*((127+x2<(x1==141))<((620!=33)==(x3>264))))!=(((x2*x1+(316!!780)&&631-x2<=(x3<=287))<=((x3<=740)+(931>579)!!x1!=x2&&331<=74))<=(((x3-x1>(407>159))>x3*x1+(589==x0))<(((x3!!360)&&x0+x3)&&(699==781&&594*x0))))-((x2-182>(x2!=208))-(x1+647<=x0+x3)!!((x1>=x1)!=112-528)<((x2!!637)>=(344<=616)))*(((x1+789&&953=(271957)+(x2>=131)))!!(((x3<701)<=x1-x2)*(x2>=320&&x1-x3)<=(((401<=275)>=(x0>635))!=(702!!x2)+(x3>508))!!(((291<=x1)>=(x0!=x1))==((69!!462)>=(166>x3))!!(171<=508&&109*765!!(982*778!!591<795))))+((((399<31)>x2-x3)*((x3!=x2)-(x1!!x2))==(((x2!!367)!!411!=x0)>(x1-428!=(503==187))))>=((809*x0)*(x1<351)-(482&&x2!!711<962)>(x0>149)*(x2!!x0)-(868((x1<=x1)-(x1!!x1)==(122+585>(x1!!x1))))<=((x2-537)-(874==x1)!=((992&&462)&&x1260)<=(496>x1))*((x2!!x1)>=(658<=498))))<=(((211-927)*(x0-341)>=(547-x1<=(55==x2)))<((x1=766)!!(161==x3!!x2>=583))>=(x2*249!=x3+x1!!x0*139>(x3