#include <bits/stdc++.h>
using namespace std;
int main() {
  int a;
  cin >> a;
  if (a == 0) cout << "zero";
  if (a == 1) cout << "one";
  if (a == 2) cout << "two";
  if (a == 3) cout << "three";
  if (a == 4) cout << "four";
  if (a == 5) cout << "five";
  if (a == 6) cout << "six";
  if (a == 7) cout << "seven";
  if (a == 8) cout << "eight";
  if (a == 9) cout << "nine";
  if (a == 10) cout << "ten";
  if (a == 11) cout << "eleven";
  if (a == 12) cout << "twelve";
  if (a == 13) cout << "thirteen";
  if (a == 14) cout << "fourteen";
  if (a == 15) cout << "fifteen";
  if (a == 16) cout << "sixteen";
  if (a == 17) cout << "seventeen";
  if (a == 18) cout << "eighteen";
  if (a == 19) cout << "nineteen";
  if (a == 20) cout << "twenty";
  if (a == 21) cout << "twenty-one";
  if (a == 22) cout << "twenty-two";
  if (a == 23) cout << "twenty-three";
  if (a == 24) cout << "twenty-four";
  if (a == 25) cout << "twenty-five";
  if (a == 26) cout << "twenty-six";
  if (a == 27) cout << "twenty-seven";
  if (a == 28) cout << "twenty-eight";
  if (a == 29) cout << "twenty-nine";
  if (a == 30) cout << "thirty";
  if (a == 31) cout << "thirty-one";
  if (a == 32) cout << "thirty-two";
  if (a == 33) cout << "thirty-three";
  if (a == 34) cout << "thirty-four";
  if (a == 35) cout << "thirty-five";
  if (a == 36) cout << "thirty-six";
  if (a == 37) cout << "thirty-seven";
  if (a == 38) cout << "thirty-eight";
  if (a == 39) cout << "thirty-nine";
  if (a == 40) cout << "forty";
  if (a == 41) cout << "forty-one";
  if (a == 42) cout << "forty-two";
  if (a == 43) cout << "forty-three";
  if (a == 44) cout << "forty-four";
  if (a == 45) cout << "forty-five";
  if (a == 46) cout << "forty-six";
  if (a == 47) cout << "forty-seven";
  if (a == 48) cout << "forty-eight";
  if (a == 49) cout << "forty-nine";
  if (a == 50) cout << "fifty";
  if (a == 51) cout << "fifty-one";
  if (a == 52) cout << "fifty-two";
  if (a == 53) cout << "fifty-three";
  if (a == 54) cout << "fifty-four";
  if (a == 55) cout << "fifty-five";
  if (a == 56) cout << "fifty-six";
  if (a == 57) cout << "fifty-seven";
  if (a == 58) cout << "fifty-eight";
  if (a == 59) cout << "fifty-nine";
  if (a == 60) cout << "sixty";
  if (a == 61) cout << "sixty-one";
  if (a == 62) cout << "sixty-two";
  if (a == 63) cout << "sixty-three";
  if (a == 64) cout << "sixty-four";
  if (a == 65) cout << "sixty-five";
  if (a == 66) cout << "sixty-six";
  if (a == 67) cout << "sixty-seven";
  if (a == 68) cout << "sixty-eight";
  if (a == 69) cout << "sixty-nine";
  if (a == 70) cout << "seventy";
  if (a == 71) cout << "seventy-one";
  if (a == 72) cout << "seventy-two";
  if (a == 73) cout << "seventy-three";
  if (a == 74) cout << "seventy-four";
  if (a == 75) cout << "seventy-five";
  if (a == 76) cout << "seventy-six";
  if (a == 77) cout << "seventy-seven";
  if (a == 78) cout << "seventy-eight";
  if (a == 79) cout << "seventy-nine";
  if (a == 80) cout << "eighty";
  if (a == 81) cout << "eighty-one";
  if (a == 82) cout << "eighty-two";
  if (a == 83) cout << "eighty-three";
  if (a == 84) cout << "eighty-four";
  if (a == 85) cout << "eighty-five";
  if (a == 86) cout << "eighty-six";
  if (a == 87) cout << "eighty-seven";
  if (a == 88) cout << "eighty-eight";
  if (a == 89) cout << "eighty-nine";
  if (a == 90) cout << "ninety";
  if (a == 91) cout << "ninety-one";
  if (a == 92) cout << "ninety-two";
  if (a == 93) cout << "ninety-three";
  if (a == 94) cout << "ninety-four";
  if (a == 95) cout << "ninety-five";
  if (a == 96) cout << "ninety-six";
  if (a == 97) cout << "ninety-seven";
  if (a == 98) cout << "ninety-eight";
  if (a == 99) cout << "ninety-nine";
  if (a == 100) cout << "one hundred";
}
