instruction:
In this task you will be given a string that only contains single digit numbers spelled out. The input string will not contain spaces between the different numbers. Your task is to return the number that the string spells out. The string will spell out each digit of the number for example '1726' will be 'oneseventwosix' instead of 'one thousand seven hundred six'.
question:
threesevenzerotwooneeightfiveninethreeonefivefour
answer:
370218593154


question:
fiveonesixsevenzero
answer:
51670


question:
fivesevensevenseventhreenineeightzerosixeight
answer:

5777398068