You are given two integers L and R. Your task is to print all Armstrong numbers in the inclusive range [L, R] in ascending order, separated by spaces. An Armstrong number equals the sum of its digits, each raised to the power of the total number of digits.
Input: L = 1, R = 500
Output: 1 2 3 4 5 6 7 8 9 153 370 371 407
Explanation: These are all the Armstrong numbers in the range from 1 to 500.
Input: L = 100, R = 200
Output: 153
Explanation: The only Armstrong number in this range is 153, because 1³ + 5³ + 3³ = 153.
Input: L = 10, R = 99
Output: (empty)
Explanation: No two-digit numbers are Armstrong numbers, so there are no numbers to print.
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