message: typecasting to number
diff: @@ -6,7 +6,7 @@ exports.add = async (event:any) => {
  let firstNum = event?.queryStringParameters?.firstNum ?? 0;
  let secondNum = event?.queryStringParameters?.secondNum ?? 0;
  - let result = firstNum + secondNum;
  + let result = Number(firstNum) + Number(secondNum);
  console.log(`result of ${firstNum} + ${secondNum} = ${result}`)
  return sendRes(200, result.toString());
  