1
2
3
4
5
6
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10
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17
18
19
20
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31
32
33
34
35
36
37
38
39
|
6 +-------------------------------------------------------------------------------------------+
| + + + + |
| |
| |
| |
| |
5 |-+ A +-|
| |
| |
| |
| |
| |
4 |-+ ### +-|
| #### # |
| #### # |
| ##### # |
| #### # |
| #### # |
3 |-+ A ##### # +-|
| #### # |
| #### # |
| ##### # |
| #### # |
| #### # |
2 |-+ A #### # A +-|
| ## # |
| ## # |
| ## # |
| ## # |
| ## # |
1 |-+ ## # +-|
| |
| |
| |
| |
| + + + + |
0 +-------------------------------------------------------------------------------------------+
aaa bbb ccc ddd
|
