text: /**
   * The MAC-48 address is six groups of two hexadecimal digits (0 to 9 or A to F),
   * separated by hyphens.
   *
   * Your task is to check by given string inputString
   * whether it's a MAC-48 address or not.
   *
   * @param {Number} inputString
   * @return {Number}
   *
   * @example
   * For 00-1B-63-84-45-E6, the output should be true.
   *
   */
  function getMatrixElementsSum(n) {
    let valid = false;
    if (/^([0-9A-F]{1,2}[-]){5}[0-9A-F]{1,2}$/.test(n)) {
      valid = true;
    }
    return valid;
  }
  
  module.exports = getMatrixElementsSum;
  