class Solution {
  fun generateTag(caption: String): String {
      
        val words = caption
            .split("\\s+".toRegex())
            .map { it.filter(Char::isLetter) }
            .filter(String::isNotEmpty)

   
        val camel = words
            .mapIndexed { idx, w ->
                w.lowercase().let { low ->
                    if (idx == 0) low
                    else low.replaceFirstChar { it.uppercaseChar() }
                }
            }
            .joinToString("")

        
        return ("#$camel").take(100)
    }
}