In the range 1 - 13 (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13) the digit 1 occurs 6 times. In the range 1 - 5000, expressed in Roman numerals, how many times does the numeral 'X' occur? class Legions @@roman_map = { 1 => "I", 4
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