TASK DEFINITION: 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'.
PROBLEM: fourseveneightninetwosevenfouronethree

SOLUTION: 478927413

PROBLEM: twoeightninethreethreethreefiveone

SOLUTION: 28933351

PROBLEM: sevensevennineseventwofiveninefourthreesevenzero

SOLUTION:
77972594370

