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:
fourninefourzeroninethreeeight
answer:
4940938


question:
twooneninefourzerosixfive
answer:
2194065


question:
ninethreesevenfoureightnine
answer:

937489