dart_acc_3.dart

import 'dart:convert';
import 'dart:io';

void main(List<String> arguments) {
  String? input;
  var acc = 0.0;
  do {
    input = stdin.readLineSync(encoding: utf8);
    try {
      acc += double.parse(input ?? "");
      print(acc);
    } catch(e) {
      acc = 0.0;
      print("reseted");
    }
  } while(input != "stop");
}