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N
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b
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(
o
r
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a
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p
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B
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t
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N
u
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,
w
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y
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b
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t
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O
r
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B
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s
m
a
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I
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P
a
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N
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C
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t
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N
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w
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d
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b
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1
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O
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1
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P
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N
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1
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1
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C
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t
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c
t
n
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m
b
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s
(
1
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1
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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
s
y
m
b
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l
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1
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5
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O
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1
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5
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P
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N
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1
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5
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C
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c
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(
1
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I
d
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t
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y
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d
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v
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n
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N
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s
,
w
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d
s
a
n
d
s
y
m
b
o
l
s
(
5
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0
0
0
t
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9
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)
Lesson
Practice
O
r
d
e
r
n
u
m
b
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s
(
5
0
0
0
0
t
o
9
0
0
0
0
)
P
a
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t
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5
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9
0
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)
C
o
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s
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c
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m
b
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(
5
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t
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9
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)
P
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E
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C
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p
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t
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1
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C
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p
a
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n
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(
1
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9
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R
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d
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b
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t
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1
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s
)
M
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k
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N
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w
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N
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C
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(
I
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t
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t
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n
)
N
u
m
b
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s
,
w
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d
s
a
n
d
s
y
m
b
o
l
s
(
9
0
0
0
0
t
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9
0
0
0
0
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)
N
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b
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s
,
w
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s
a
n
d
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y
m
b
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(
m
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)
O
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(
9
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)
P
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(
9
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C
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(
9
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m
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C
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(
9
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t
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m
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)
R
o
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d
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b
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s
(
t
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1
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0
'
s
)
R
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d
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n
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L
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a
d
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P
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N
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w
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y
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b
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)
O
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b
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)
P
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n
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b
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C
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c
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b
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E
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p
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C
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b
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E
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O
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Primary
Numbers, words and symbols (50000 to 90000)
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