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Topics
N
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m
b
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r
(
o
r
d
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a
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d
p
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v
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B
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t
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5
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)
N
u
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b
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s
,
w
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d
s
a
n
d
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y
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b
o
l
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t
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1
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O
r
d
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r
n
u
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b
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t
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1
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)
B
i
g
g
e
r
o
r
s
m
a
l
l
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I
n
v
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t
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P
a
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t
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N
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1
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C
o
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t
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c
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n
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b
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t
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N
u
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b
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,
w
o
r
d
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a
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y
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b
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1
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t
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1
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O
r
d
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r
n
u
m
b
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s
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1
0
0
0
t
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1
0
0
0
0
)
P
a
r
t
i
t
i
o
n
N
u
m
b
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s
(
1
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t
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1
0
0
0
0
)
C
o
n
s
t
r
u
c
t
n
u
m
b
e
r
s
(
1
0
0
0
t
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1
0
0
0
0
)
N
u
m
b
e
r
s
,
w
o
r
d
s
a
n
d
s
y
m
b
o
l
s
(
1
0
0
0
0
t
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5
0
0
0
0
)
O
r
d
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n
u
m
b
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s
(
1
0
0
0
0
t
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5
0
0
0
0
)
P
a
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t
i
t
i
o
n
N
u
m
b
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s
(
1
0
0
0
0
t
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5
0
0
0
0
)
C
o
n
s
t
r
u
c
t
n
u
m
b
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r
s
(
1
0
0
0
0
t
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5
0
0
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)
I
d
e
n
t
i
f
y
o
d
d
a
n
d
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v
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n
n
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b
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s
N
u
m
b
e
r
s
,
w
o
r
d
s
a
n
d
s
y
m
b
o
l
s
(
5
0
0
0
0
t
o
9
0
0
0
0
)
O
r
d
e
r
n
u
m
b
e
r
s
(
5
0
0
0
0
t
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9
0
0
0
0
)
P
a
r
t
i
t
i
o
n
n
u
m
b
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r
s
(
5
0
0
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0
t
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9
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0
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)
C
o
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s
t
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u
c
t
n
u
m
b
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s
(
5
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0
t
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9
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)
Lesson
Practice
P
r
o
p
e
r
t
i
e
s
o
f
o
d
d
a
n
d
e
v
e
n
n
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b
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s
E
x
p
a
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d
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d
n
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t
a
t
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a
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d
e
x
p
a
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d
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d
f
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r
m
I
d
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n
t
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f
y
i
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t
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v
a
l
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e
o
f
t
h
e
d
i
g
i
t
s
i
n
n
u
m
b
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r
s
(
I
n
v
e
s
t
i
g
a
t
i
o
n
)
C
o
m
p
a
r
e
n
u
m
b
e
r
s
(
t
o
1
0
0
0
0
)
C
o
m
p
a
r
e
n
u
m
b
e
r
s
(
1
0
0
0
0
t
o
9
0
0
0
0
)
R
o
u
n
d
n
u
m
b
e
r
s
(
t
o
1
0
'
s
o
r
1
0
0
'
s
)
M
a
k
i
n
g
N
u
m
b
e
r
s
w
i
t
h
N
u
m
b
e
r
C
a
r
d
s
(
I
n
v
e
s
t
i
g
a
t
i
o
n
)
N
u
m
b
e
r
s
,
w
o
r
d
s
a
n
d
s
y
m
b
o
l
s
(
9
0
0
0
0
t
o
9
0
0
0
0
0
)
N
u
m
b
e
r
s
,
w
o
r
d
s
a
n
d
s
y
m
b
o
l
s
(
m
i
l
l
i
o
n
s
)
O
r
d
e
r
i
n
g
n
u
m
b
e
r
s
(
9
0
0
0
0
t
o
m
i
l
l
i
o
n
)
P
a
r
t
i
t
i
o
n
n
u
m
b
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r
s
(
9
0
0
0
0
t
o
m
i
l
l
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o
n
)
C
o
n
s
t
r
u
c
t
n
u
m
b
e
r
s
(
9
0
0
0
0
t
o
m
i
l
l
i
o
n
s
)
C
o
m
p
a
r
e
n
u
m
b
e
r
s
(
9
0
0
0
0
t
o
m
i
l
l
i
o
n
s
)
R
o
u
n
d
n
u
m
b
e
r
s
(
t
o
1
0
0
0
'
s
)
R
o
u
n
d
l
a
r
g
e
n
u
m
b
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r
s
L
e
a
d
i
n
g
d
i
g
i
t
e
s
t
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m
a
t
i
o
n
P
u
z
z
l
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s
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g
p
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a
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v
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f
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m
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l
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(
I
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v
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t
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g
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o
n
)
N
u
m
b
e
r
s
,
w
o
r
d
s
a
n
d
s
y
m
b
o
l
s
(
i
n
b
i
l
l
i
o
n
s
)
O
r
d
e
r
n
u
m
b
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r
s
(
i
n
b
i
l
l
i
o
n
s
)
P
a
r
t
i
t
i
o
n
n
u
m
b
e
r
s
(
b
i
l
l
i
o
n
s
)
C
o
n
s
t
r
u
c
t
n
u
m
b
e
r
s
(
b
i
l
l
i
o
n
s
)
E
x
p
a
n
d
e
d
n
o
t
a
t
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n
a
s
p
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w
e
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s
o
f
1
0
C
o
m
p
a
r
e
n
u
m
b
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r
s
(
b
i
l
l
i
o
n
s
)
E
s
t
i
m
a
t
i
n
g
O
b
j
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c
t
s
(
I
n
v
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t
i
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a
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n
)
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Primary
Construct numbers (50000 to 90000)
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