text: export const sumUpNumbers = (inputString) => {
      let answer = 0,
          currentNumber = 0;
  
      for (let i = 0; i < inputString.length; i++) {
          if ('0' <= inputString[i] && inputString[i] <= '9') {
              currentNumber = currentNumber * 10 + inputString.charCodeAt(i) - '0'.charCodeAt(0);
          }
          else {
              answer += currentNumber;
              currentNumber = 0;
          }
      }
      answer += currentNumber;
  
      return answer;
  
  };
  