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'.

Ex Input:
fourtwoeighttwofivezerozeroninefivezero

Ex Output:
4282500950


Ex Input:
sixninethreezeroonefivetwofive

Ex Output:
69301525


Ex Input:
threesixfourninetwooneonethreefourtwoone

Ex Output:

36492113421