#JavaScriptish, no number literals
var ________________ = [] + []; var _ = day() - day(); _++; var _____ = _ + _; var ___ = _____ + _____; var __ = ___ + ___; var ____ = __ + __; var ______ = ____ + ____; var _______ = ______ + _; var ___________ = ______ + ______ + __; var ______________ = ___________ + ____ - _; var ____________ = _ + _____; var ________ = _______ * ____________ + _; var _________ = ________ + _; var _____________ = ______________ + ______ - ___ - _; var __________ = _____________ - ____________; var _______________ = __________ - ____________; println(________________ + String.fromCharCode(___________, _________, _______________, _______________, __________, ______, ______________, __________, _____________, _______________, ________, _______));
Demonstration here.
#Malbolge
('&%:9]!~}|z2Vxwv-,POqponl$Hjig%eB@@>}=<M:9wv6WsU2T|nm-,jcL(I&%$#" `CB]V?Tx<uVtT`Rpo3NlF.Jh++FdbCBA@?]!~|4XzyTT43Qsqq(Lnmkj"Fhg${z@>
or
(=<`#9]~6ZY32Vx/4Rs+0No-&Jk)"Fh}|Bcy?`=*z]Kw%oG4UUS0/@-ejc(:'8dc
I have no clue how this works.
Source: http://en.wikipedia.org/wiki/Malbolge#.22Hello_World.21.22_in_Malbolge