@@ -0,0 +1,182 @@
+public String oneTwo(String str) %7B%0A  String out = %22%22;%0A  for (int i=0; i%3Cstr.length()-2; i+=3)%0A    out += str.substring(i+1, i+3) + Character.toString(str.charAt(i));%0A  return out;%0A%7D%0A

Create oneTwo.java