Recursion - WHY does this print the output backwards?

Can somebody explain why this program outputs ZYx321cBa instead of: aBc123xYZ

I dont seem to understand why. I notice when the recursion is called at the end of the method, it prints properly, but not when recursion is called first.

public class R {

        public static void main(String[] args) {

            String str ="aBc123xYZ";

            Rc rev = new Rc(str);
            rev.raC(0);
        }
    }

Second class, that prints the string based on the index entered in previous class

    class Rc {

        String s;
        int lc = 0;

        Rc(String s) {
            this.s = s;
        }

        void raC(int index) {
            if (index != s.length()) {
                raC(index + 1);
                //System.out.println(index);
                System.out.println(s.charAt(index) + " ");
                if(Character.isLowerCase(s.charAt(index))) {
                    lc ++;
                }
            }

            if (index == 0) {
                System.out.println(":" + lc);
            }
        }
    }