Problem library

Emote Count

Easy
strings
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A chat message is a list of words separated by single spaces. A word is an *emote* if it is a colon, then one or more lowercase letters a to z, then a colon, with nothing else. For example :gg: is an emote, while :GG:, ::, :go2: and :a:b: are not.

Return how many words in message are emotes.

Examples

Input: message = "gg :fire: wp :wave:"
Output: 2
Input: message = ":GG: ::"
Output: 0