# Returns the N-th digit of a number counting from the left.
#
# Examples:
# get_nth_digit_from_left(12345, 1) # => 1
# get_nth_digit_from_left(12345, 3) # => 3
def get_nth_digit_from_left(input_number, digit_position)
digit_string = input_number.abs.to_s
if digit_position < 1 || digit_position > digit_string.length
raise ArgumentError, "Digit position is out of range."
end
digit_string[digit_position - 1].to_i
end
# Program entry point.
def main
input_number = 82_746
first_digit = get_nth_digit_from_left(input_number, 1)
third_digit = get_nth_digit_from_left(input_number, 3)
fifth_digit = get_nth_digit_from_left(input_number, 5)
puts "Number: #{input_number}"
puts "1st digit from left: #{first_digit}"
puts "3rd digit from left: #{third_digit}"
puts "5th digit from left: #{fifth_digit}"
end
main
# run:
#
# Number: 82746
# 1st digit from left: 8
# 3rd digit from left: 7
# 5th digit from left: 6
#
