def getPhoneNumber(s):
    ph = ""
    numbers = {
        "one": '1',
        'two': '2',
        'three': '3',
        'four': '4',
        'five': '5',
        'six': '6',
        'seven': '7',
        'eight': '8',
        'nine': '9',
        'zero': '0'
    }

    numlist = s.split(" ")
    numlist = iter(numlist)
    for num in numlist:
        # print(num)
        if num in numbers:
            ph = ph+numbers[num]
        elif num == 'double':
            nextnum = numbers[next(numlist)]
            ph = ph+nextnum+nextnum
        elif num == 'triple':
            nextnum = numbers[next(numlist)]
            ph = ph+nextnum+nextnum+nextnum

    return ph

def main():
    strNum = input(
        "Enter phone number in words using keywords double and triple if necessary: ")
    print("The phone number in digits is: ", getPhoneNumber(strNum))

main()


# Coded by Shreya Idate