let str;
while ((str = readline())) {
  let arr;
  arr = [];
  let flag = false;
  let word = "";
  for (let i = 0; i < str.length; i++) {
    if (str[i] === '"') {
      flag = !flag;
    } else if (str[i] == " " && !flag) {
      arr.push(word);
      word = "";
    } else {
      word += str[i];
    }
  }
  arr.push(word);

  print(arr.length);
  arr.forEach((el) => {
    print(el);
  });
}