[n/25] + [(n+1)/25] + [(n+2)/25] + [(n+3)/25] + [(n+4)/25]. 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5
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