407058: GYM102697 029 Goooooooooal!

Your favorite soccer announcer will always say "gooooal" for a very long time after a team scores. You have a "speech to text" tool that transcribed the announcer's words. Given his written down goal reaction, figure out exactly how many "o" letters are in it.

The only line of input contains a single string $$$s$$$: the announcer's reaction to a team's goal.

Output a single integer $$$n$$$: the number of "o" letters in the given string.

goooooooooal

9