public class Eins {

  public static void main(String[] args) {
    System.out.println(calculateScore("imperative") == 9);
    System.out.println(calculateScore("no") == 2);
    System.out.println(wordScore("declarative") == 9);
    System.out.println(wordScore("yes") == 3);
  }

  public static int calculateScore(String word) {
    int score = 0;
    for (char c : word.toCharArray()) {
      if (c != 'a') {
        score++;
      }
    }
    return score;
  }

  public static int wordScore(String word) {
    return word.replace("a", "").length();
  }
}
