[Ruby] Returns characters in a pyramid shape according to the entered numbers

while str = STDIN.gets
  break if str.chomp == "exit"#Returns the string with the line feed code removed from the end of the string
  n=str.to_i#A method that returns a string as an integer
  puts n
  for x in 0..n-1
    (n-x-1).times{printf(" ")}
    for y in 1..2*x+1
      printf("*")
    end
    puts "\n"
  end
end

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