9 9 1
aaabbbccc
ajabkbclc
aaabbbccc
dddeeefff
dmdenefof
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ggghhhiii
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...64.15.
.7....8.6
..7....94
3..7.1...
8...7...3
...8.4..9
46....2..
5.3....1.
.82.53...