WOLFRAM
|
DEMONSTRATIONS PROJECT
D
i
g
i
t
S
u
m
s
t
a
r
g
e
t
d
i
g
i
t
s
u
m
0
n
u
m
b
e
r
o
f
d
i
g
i
t
s
2
3
4
2
-
d
i
g
i
t
n
u
m
b
e
r
s
w
h
o
s
e
d
i
g
i
t
s
a
d
d
u
p
t
o
0
:
{
0
0
}
W
h
i
c
h
n
u
m
b
e
r
s
h
a
v
e
d
i
g
i
t
s
t
h
a
t
a
d
d
u
p
t
o
a
g
i
v
e
n
n
u
m
b
e
r
?
F
o
r
e
x
a
m
p
l
e
,
c
o
n
s
i
d
e
r
a
l
l
t
w
o
-
d
i
g
i
t
n
u
m
b
e
r
s
a
n
d
a
t
a
r
g
e
t
d
i
g
i
t
s
u
m
o
f
1
0
.
T
h
e
s
o
l
u
t
i
o
n
i
s
{
1
9
,
2
8
,
3
7
,
4
6
,
5
5
,
6
4
,
7
3
,
8
2
,
9
1
}
.