text: #include <iostream>
  #include <string>
  
  using namespace std;
  
  int main() {
    int sum = 0;
    string words[10] = {"zero", "one", "two", "three", "four", "five", "six", "seven", "eight", "nine"};
    string s, s_sum;
    cin >> s;
    for (int i = 0; i < s.length(); i++) {
      sum += s[i] - '0';
    }
    s_sum = to_string(sum);
    for (int i = 0; i < s_sum.length(); i++) {
      if (i != 0) cout << " ";
      cout << words[s_sum[i] - '0'];
    }
    cout << endl;
    return 0;
  }
  