Send more money!

[Rakesh Joshi]

Komal is a freshman in the University of Delhi. She has spent all the money for the fall semester. She knows that her father is a puzzle fan. So she mails her father a puzzle as shown.

She knew her father should be able to resolve this puzzle easily and mail the MONEY to her. Do you know how much money she will be receiving from her father?

SEND
+ MORE
___________
MONEY

[George Harris]

Assuming that it is a simple number substitution I would guess:
$10,652

[Ulf Dittmer]

Let's see, for how many of you could it be a spoiler if I post Prolog code that solves it

smm :-X = [S,E,N,D,M,O,R,Y],
Digits = [0,1,2,3,4,5,6,7,8,9],
assign_digits(X, Digits),
M > 0, 
S > 0,
1000*S + 100*E + 10*N + D +
1000*M + 100*O + 10*R + E =:=
10000*M + 1000*O + 100*N + 10*E + Y,
write(X), nl.
 
select(X, [X|R], R).
select(X, [Y|Xs], [Y|Ys]):- select(X, Xs, Ys).
 
assign_digits([], _List).
assign_digits([D|Ds], List):-
select(D, List, NewList),
assign_digits(Ds, NewList).