1969
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1 1 1 --- 1 --- 1 1 --- 1 1 1 1
2 --- 1 --- 1 1 1 --- --- 1 1 1 1
3 1 1 --- 1 1 1 1 --- 1 1 1 ---
4 1 1 --- --- 1 1 1 --- 1 1 1 ---
5 --- --- 1 1 --- 1 1 --- 1 1 1 1
6 1 --- 1 --- 1 1 1 --- 1 1 --- 1
7 1 --- 1 --- 1 1 1 --- 1 1 1 1
8 1 --- --- --- 1 1 1 --- 1 1 1 ---
9 1 1 1 --- 1 1 1 --- 1 1 1 ---
10 --- --- --- --- --- 1 1 --- 1 1 --- ---
11 1 --- 1 --- --- 1 1 --- 1 1 1 ---
12 1 --- 1 1 1 1 1 --- --- 1 1 ---
13 1 1 1 1 --- 1 --- 1 1 1 1 ---
14 1 --- 1 1 1 1 --- 1 1 1 --- ---
15 1 1 1 1 1 1 --- 1 --- 1 1 ---
16 1 --- 1 --- 1 --- --- 1 1 1 1 ---
17 1 1 1 --- 1 1 --- 1 1 1 --- ---
18 1 --- --- 1 --- 1 --- 1 --- 1 --- ---
19 1 --- --- 1 1 1 --- 1 1 1 --- ---
20 1 --- --- 1 1 1 --- --- --- 1 1 1
21 --- 1,2 --- --- 1 1 --- --- --- 1 1 ---
22 --- 1,2 1 1 --- 1 --- 1 --- 1 1 ---
23 --- 1,2 1 --- 1 --- --- 1 1 1 1 ---
24 1 1,2 1 1 --- 1 --- 1 1 1 1 1
25 --- 1,2 --- --- 1 1 --- 1 1 1 --- ---
26 1 --- --- --- 1 1 --- 1 1 1 --- 1
27 1 --- --- 1 1 1 --- 1 1 --- --- ---
28 1 --- --- 1 1 --- --- 1 1 --- --- ---
29 1   --- 1 --- --- --- 1 1,2 1 --- ---
30 ---   --- --- 1 1 --- 1 1,2 --- 1 ---
31 ---   1   1   --- 1   ---   ---