function tenToBin(x) {
  const l = [];
  while (x !== 0) {
    l.push(x % 2);
    x = Math.trunc(x / 2);
  }
  return l;
}

function calculateSum(numbers, mask) {
  let x = 0;
  for (let i = 0; i < mask.length; i++) {
    if (mask[i] == 1) {
      x = x + numbers[i];
    }
  }
  return x
}

function findSum(target, numbers) {
  const totalCombinations = Math.pow(2, numbers.length) - 1;
  for (let index = 0; index < totalCombinations; index++) {
    const mask = tenToBin(index);
    const currentSum = calculateSum(numbers, mask);
    if (currentSum == target) {
      console.log(mask);
      return mask;
    }
  }
  return [];
}

function main() {
  const args = process.argv.slice(2);

  // 1. Валидация
  if (args.length < 5) {
    console.log("ER: input parameters");
    process.exit(1);
  }

  if (args.length > 30) {
    console.log("ER: input parameters");
    process.exit(1);
  }

  // 2. Формирование данных
  const target = parseInt(args[0], 10);
  const numbers = args.slice(1).map(Number);

  // 3. Запуск поиска
  const result = findSum(target, numbers);

  if (result.length) {
    console.log("OK: ", result.join(''));
  } else {
    console.log("NO: not found.")
  }
}

main();