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| from functools import reduce | |
| print([*[reduce(lambda m,_: ({v:a[0][int(''.join("01"[m[0].get(v+d,m[1])=='#'] for d in D),2)] for v in {v-d for v in m[0] for d in D}},a[0][511*(m[1]=='#')]),range(50),(a[2],'.')) for D in [[k//3+k%3*1j for k in range(9)]] for f in [open(0)] for a in [(next(f),next(f),{x+y*1j:c for x,s in enumerate(f) for y,c in enumerate(s)})]][0][0].values()].count('#')) |
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