#include <iostream>
#include <vector>
#include <regex>
 
int main() {
   const std::regex includeRegex(R"(\b[[:alpha:]]+\b)");
   std::smatch match;
   std::string test = "abcd LastMatch РОДИНА";
   std::vector<std::string> results(std::sregex_token_iterator(test.begin(), test.end(), includeRegex),
                               std::sregex_token_iterator());
 
   std::cout << results.size() << std::endl;
   for (auto result : results)
   {
      std::cout << result << std::endl;
   }
 
   return 0;
}

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