def number_to_words(number):
    number_word_dictionary = {
        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'
        
    }
    
    return number_word_dictionary[number]


def timeInWords(h, m):
    if m > 30:
        hours = number_to_words(h + 1)
        minutes = number_to_words(60 - m)
        past_or_to = 'to'
    elif m > 0:
        hours = number_to_words(h)
        minutes = number_to_words(m)
        past_or_to = 'past'
    else:
        hours = number_to_words(h)
        return hours + ' ' + "o' clock"
    if m == 1:
        return minutes + ' minute ' + past_or_to + ' ' + hours
    if m == 15 or m == 30 or m == 45:
        return minutes + ' ' + past_or_to + ' ' + hours
    else:
        return minutes + ' minutes ' + past_or_to + ' ' + hours