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:
threefoursixfivenine

Ex Output:
34659


Ex Input:
eightfoursevensevenonesixsevenonefourzeronine

Ex Output:
84771671409


Ex Input:
twoonefivetwotwothree

Ex Output:

215223