3. Recursion Mystery. Consider the following method:

public int mystery3(int n) { if (n < 0) return -mystery3(-n); else if (n < 10) return n; else return mystery3(n/10 + n % 10); }

For each call below, indicate what value is returned:

Method Call Value Returned

mystery3(6) _____________

mystery3(17) _____________

mystery3(259) _____________

mystery3(977) _____________

mystery3(-479) ____________