x0 := read (); x1 := read (); x2 := read (); x3 := read (); y := ((((((x1>x3)<=(x3!!x3))==(819==21)-(536>=58))!=(((272==174)>=(254>=757))<=(x2>437)-(930>x2)))-(((272<561)<=(x0>=402))-((x3!=x1)>(963==796))!=((x2!!237)+(219(x0>=x0))<=(313-x3>183*506))==((218>=570)*(x0!=41)>=((787!=x0)>(x3=((615+844<=(524==186)&&x1*527==(373!=x0))>=((x1+x3!=(960!!x0))==(x1-167)*(495&&x2))))==((((x0(837==968&&755*45))>=((x0<=x2&&x3>x2)<=((x0&&x2)=(863&&225))))&&(((527==x2)>=x2+x1)>((271!=447)>=(x0<448))!!((468!!734)&&x3!=269)!=(x0-818>(x3==828)))>(((x1==x1)*(602>476)&&x0-x3>(978!=x1))>((794<321)<=(897>=363))+((x1!!685)+(x3-x1)))))!=(((((x1!!x3)+402*x3)*(735==996&&x3>=x2)>=((849>=496)-(x1!=x3)&&(106!!632)==(x0==858)))>=((496+562==x0+363)!=(x0>=504)-(252+x2))+((495*x1&&(14!!445))<=(487==642&&159*x2)))<=((((x0>x1)<(x0&&385))<=((x3>=x2)>(x0>=x0)))+((598>699)>=(x0!=313)!!(x3==x2!!733<=x0))!=(((612*215>=(x0<=x1))!=x3*x3+(x2==93))>((746x2))+(10>x1&&x2!=x0))))*((((641!!612)*(x0+898)!!x2-x3>(x0&&380))&&(560>x1)+(333!!676)==((455>x2)<(x3!!x0)))<=(((x2((x1>=743)*(555>=x0)<=(x1+692!=(168==643))))!!((467<=x2&&855+679)+(334+x2<=(x0!!903))!=(((374==x3)!=(785<=980))==(x3-673!=(618==291)))!!(((x0>=249)<(458==829))<(x3-955!!942==x3)!!((316!=503)*(x3>42)!!x3==186&&650