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'.

Example Input: ninetwotwoeightthree
Example Output: 92283

Example Input: foursixninezerothreeonezerothree
Example Output: 46903103

Example Input: twozerooneninefoursixthreeonesevenseven
Example Output:
2019463177