t
r
a
n
s
l
a
1
t
l
2
r
3
a
4
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5
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6
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7
a
8
t
9
r
10
a
11
n
12
s
13
l
14
a
15
t
16
r
17
a
18
n
19
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20
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21
a
22
t
23
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24
a
25
n
26
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27
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28
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29
t
30
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31
a
1
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2
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3
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4
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t
r
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a