Hello world!

var ___="SCgh";
function n(a) {return eval(___[~[]-~[]]+(typeof [])[(-~[])<<(-(~[]+~[])) |(-~[])]+
(typeof ~[])[(-~[])<<(-(~[]+~[])) |(-~[])]+(typeof _1)[(-~[])<<(-(~[]+~[])) |(-~[])]+
(typeof ~[])[~[]-~[]]+___[(-~[])<<(-~[])])[(typeof eval(eval((typeof -~[])[~[]-~[]])))
[~[]-~[]]+ (typeof ~[])[(-~[])<<(-(~[]+~[])) |(-~[])]+(typeof {})[~[]-~[]]+
(typeof ~[])[-~[]<<-~[]]+___[-~[]]+___[((-~[]<<-~[])|-~[])]+([]+NaN)[-~[]]+
(typeof ~[])[(-~[])<<(-(~[]+~[])) |(-~[])]+___[-~[]]+(typeof {})[~[]-~[]]
+(typeof ____)[(-~[]<<-~[])]+(typeof ~[])[((-~[]<<-~
[])<<-~[])]](a);}; eval((typeof {})[((-~[]<<-~[])<<-~[])]+(typeof {})[~[]-~[]]
+(typeof ~[])[~[]-~[]]+(typeof ([]+(-~[])))[~[]-~[]]+(typeof {})[~[]-~[]]+n([]
|(-([]+~[]*~[]+ (~[]-~[]) +(~[]+~[]+~[]+~[])*(~[]+~[]))*(~[])))+(typeof ~[])[((-~[]<<-~[])<<-~[])])
[n([]|(-([]+~[]*~[]+ (~[]-~[]) +(~[]+~[]+~[]+~[])*(~[]+~[]))*(~[])))+(typeof {})[~[]-~[]]+___[(-~[])<<(-~[])]]
(n(([] + ((((-~[]<<-~[]|(-~[]))<<(-~[])))|(-~[])))+([]+(-~[]<<-~[]))) + ((typeof $a)[(~[]+~[]+~[])*~[]])
+n([]|(-([]+~[]*~[]+ (~[]-~[]) +(~[]+~[]+~[]+~[])*(~[]+~[]))*(~[])))+n([]+~[]*~[]
+(~[]-~[]) +(~[]+~[]+~[]+~[])*(~[]+~[]))+(typeof {})[~[]-~[]]+([]+{})
[((-(~[]+~[]+~[])<<-~[])+(-~[]))]+n((([]+-(~[]+~[]+~[]+~[]+~[]))+([]+((~[]+~
[]+~[])*(~[]+~[]+~[]))))<<(-~{})|(-~{}))+(typeof {})[~[]-~[]]+
(typeof ~[])[(-~[]<<(-~[]<<-~[]))+(-~[])]+n([]+~[]*~[]+ (~[]-~[]) +(~[]+~[]+~[]+~[])*(~[]+~[]))
+(typeof ____)[-~[]<<-~[]])