public boolean more20(int n) {
  if (n % 20 == 1 || n % 20 == 2) {
    return true;
  }
  else {
    return false;
  }
}

public boolean more20(int n) {
  return n % 20 == 1 || n % 20 == 2;
}

public boolean more20(int n) {
  int rem = n % 20;
  return rem == 1 || rem == 2;
}

// what do you think???
public boolean more20(int n) {
  int rem = n % 20;
  return 1 <= rem && rem <= 2;
}