 
 func convertIntToCharacter(_ int: Int) -> Character {
     
-    for (index, char) in alphabetString.characters.enumerated() {
+    for (index, char) in alphabetString.enumerated() {
         if index == int {
             return char
         }

        
        var cumulative = 0
        
        for (index, char) in characters.reversed().enumerated() {
         
            var num = convertCharacterToInt(char)
            

    }
   
    var alphabetLength: Int {
        return alphabetString.count
    }

    public func distanceTo(other: String) -> Double {
