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A002904
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Delete all letters except c,d,i,l,m,v,x from n then read as Roman numeral if possible, otherwise 0.
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3
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0, 0, 0, 0, 4, 9, 5, 1, 1, 0, 55, 55, 1, 0, 1, 9, 5, 1, 1, 0, 0, 0, 0, 0, 4, 9, 5, 1, 1, 1, 1, 1, 1, 1
(list; graph; refs; listen; history; internal format)
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