instruction:
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'.
question:
oneoneseventhreefivezeroseveneightzero
answer:
117350780


question:
zerothreeeighttwoonethreesevenonezerofour
answer:
0382137104


question:
sixzerofivezerosevenzerozero
answer:

6050700