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'.

Input: Consider Input: fourtwothreefourtwoone

Output: 423421


Input: Consider Input: oneoneninethreesixnineninezerofivezerofiveseven

Output: 119369905057


Input: Consider Input: fourseveneightninesixthreesixzerofourfourninetwo


Output: 478963604492