#include <iostream>
using namespace std;
 
int letters_counted_in_text( std::string const&text ) {
  int count = 0;
  string abc = "abcdefghijklmnñopqrstuvwxyzáéíóúABCDEFGHIJKLMNÑOPQRSTUVWXYZÁÉÍÓÚ";
 
  for( unsigned i=0; i<text.length(); ++i )
    for( unsigned j=0; j<abc.length(); ++j )
      if( text.at( i )==abc.at( j ) )
      {
        count++;
        j=abc.length();
      }
  return count;
}
 
int main() {
	// your code goes here
	string test = "Hola, cómo estás";
	cout << letters_counted_in_text(test);
 
	return 0;
}

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