const map<int, string> nums{
    {1, "one"}, {2, "two"}, {3, "three"}, {4, "four"}, {5, "five"},
    {6, "six"}, {7, "seven"}, {8, "eight"}, {9, "nine"}, {10, "ten"},
    {11, "eleven"}, {12, "twelve"}, {13, "thirteen"}, {14, "fourteen"},
    {15, "quarter"}, {16, "sixteen"}, {17, "seventeen"}, {18, "eighteen"},
    {19, "nineteen"}, {20, "twenty"}, {21, "twenty one"}, {22, "twenty two"},
    {23, "twenty three"}, {24, "twenty four"}, {25, "twenty five"},
    {26, "twenty six"}, {27, "twenty seven"}, {28, "twenty eight"},
    {29, "twenty nine"}, {30, "thirty"}};
    
string timeInWords(int h, int m) {
  
  if (m == 0) {
    return nums.at(h) + " o' clock";
  } else
  if(m > 30) {
    m = 60 - m;
    
    return nums.at(m) + 
      (m != 15 ? ((m == 1 || m == 21) ? " minute" : " minutes") : "") +
      " to " + nums.at((h+1 < 12) ? h+1 : 1);
  } else 
  if (m == 30) {
    return "half past " + nums.at(h);
  } else {
    return nums.at(m) + 
      (m != 15 ? ((m == 1 || m == 21) ? " minute" : " minutes") : "") +
      " past " + nums.at(h);
  }
}

def timeInWords(h, m):
    num_words = {
        1: "one", 2: "two", 3: "three", 4: "four", 5: "five", 6: "six",
        7: "seven", 8: "eight", 9: "nine", 10: "ten", 11: "eleven",
        12: "twelve", 13: "thirteen", 14: "fourteen", 15: "quarter",
        16: "sixteen", 17: "seventeen", 18: "eighteen", 19: "nineteen",
        20: "twenty", 21: "twenty one", 22: "twenty two", 23: "twenty three",
        24: "twenty four", 25: "twenty five", 26: "twenty six", 27: "twenty seven",
        28: "twenty eight", 29: "twenty nine", 30: "half"
    }
    
    if m == 0:
        return f"{num_words[h]} o' clock"
    
    if m == 15 or m == 30:
        return f"{num_words[m]} past {num_words[h]}"
    
    if m == 45:
        next_hour = h + 1 if h < 12 else 1
        return f"quarter to {num_words[next_hour]}"
    
    if m < 30:
        minute_word = "minute" if m == 1 else "minutes"
        return f"{num_words[m]} {minute_word} past {num_words[h]}"
    
    next_hour = h + 1 if h < 12 else 1
    minute_word = "minute" if (60 - m) == 1 else "minutes"
    return f"{num_words[60 - m]} {minute_word} to {num_words[next_hour]}"

    Hours= {1: 'one', 2: 'two', 3: 'three', 4: 'four', 5: 'five', 6: 'six', 7: 'seven', 8: 'eight', 9: 'nine', 10: 'ten', 11: 'eleven', 12: 'twelve'}
    Minutes= {1: 'one', 2: 'two', 3: 'three', 4: 'four', 5: 'five', 6: 'six', 7: 'seven', 8: 'eight', 9: 'nine', 10: 'ten', 11: 'eleven', 12: 'twelve', 13: 'thirteen', 14: 'fourteen', 15: 'quarter', 16: 'sixteen', 17: 'seventeen', 18: 'eighteen', 19: 'nineteen', 20: 'twenty', 21: 'twenty one', 22: 'twenty two', 23: 'twenty three', 24: 'twenty four', 25: 'twenty five', 26: 'twenty six', 27: 'twenty seven', 28: 'twenty eight', 29: 'twenty nine', 30: 'half'}

    if m==1:
        ans= f'{Minutes[m]} minute past {Hours[h]}'
    elif m==59:
        ans= f'{Minutes[60-m]} minute to {Hours[h+1]}'
    elif m<=30 and m>1:
        if m not in [15,30]:
            ans= f'{Minutes[m]} minutes past {Hours[h]}'
        else:
            ans=f'{Minutes[m]} past {Hours[h]}'
    elif m==0:
        ans=f'{Hours[h]} o\' clock'
    elif m>30:
        if m not in [45,30]:
            ans= f'{Minutes[60-m]} minutes to {Hours[h+1]}'
        else:
            ans=f'{Minutes[60-m]} to {Hours[h+1]}'
    return ans

def timeInWords(h: int, m: int):
    words = [
        "o' clock",
        "one",
        "two",
        "three",
        "four",
        "five",
        "six",
        "seven",
        "eight",
        "nine",
        "ten",
        "eleven",
        "twelve",
        "thirteen",
        "fourteen",
        "quarter",
        "sixteen",
        "seventeen",
        "eighteen",
        "nineteen",
        "twenty",
        "twenty one",
        "twenty two",
        "twenty three",
        "twenty four",
        "twenty five",
        "twenty six",
        "twenty seven",
        "twenty eight",
        "twenty nine",
        "half",
    ]
    
    assert len(words) == 31, "There's one number missing or something"
    
    hour = words[h]
    next_hour = 0
    if m == 0:
        return hour + " " + words[m]
    
    connector: str = ' minute'
    magic_word = ' '
    
    if 1 <= m <= 30:
        magic_word += 'past '
    else:
        magic_word += 'to '
        m = 60 - m
        next_hour = 1
        
    if m > 1:
        connector += 's'
        
    hour = words[h+next_hour]
    minutes = words[m]
        
    # Handle 15 and 30
    if m in (15, 30):
        return minutes + magic_word + hour
    
    return minutes + connector + magic_word + hour

string num2word(int n) {    
    string s;
    int t = n/10;
    int u = n%10;
    
    switch (t) {
        case 0:
            if (u == 0) return "zero";
            break;
        case 1: 
            switch (u) {
                case 0: s = "ten";       break;
                case 1: s = "eleven";    break;
                case 2: s = "twelve";    break;
                case 3: s = "thirteen";  break;
                case 4: s = "fourteen";  break;
                case 5: s = "quarter";   break;
                case 6: s = "sixteen";   break;
                case 7: s = "seventeen"; break;
                case 8: s = "eighteen";  break;
                case 9: s = "nineteen";  break; 
            }
            return s;
            break;
        case 2: s = "tweenty";   break;
    }
    switch (u) {
        case  1: s += " one";   break;
        case  2: s += " two";   break;
        case  3: s += " three"; break;
        case  4: s += " four";  break;
        case  5: s += " five";  break;
        case  6: s += " six";   break;
        case  7: s += " seven"; break;
        case  8: s += " eight"; break;
        case  9: s += " nine";  break;
    }
    
    return ltrim(s);
}

string timeInWords(int h, int m) {
  string s;
  
 if (h == 0 && m == 0)  return "midnight";
 if (h == 12 && m == 0) return "noon";
 if (m == 30)           return "half past " + num2word(h);
 if (m == 15)           return "quarter past " + num2word(h);
 if (m == 45)           return "quarter to " + num2word(h+1);
 if (m == 0)            return num2word(h) + " o' clock";
 
  switch (m) {
      case 1:  s = " minute";   break;
      default: s = " minutes";  break;
  }
  
  if (m > 30)
    return num2word(60 - m) + s + " to " + num2word(h+1);
  return num2word(m) + s + " past " + num2word(h);  
}