// THIS IS THE PREFERRED SOLUTION
public int sortaSum(int a, int b) {
  int sum = a + b; // get the SUM!
  if (10 <= sum && sum <= 19) {
    return 20;
  }
  else {
    return sum;
  }
}

public int sortaSum(int a, int b) {
  if (10 <= a + b && a + b <= 19) {
    return 20;
  }
  else {
    return a + b;
  }
}