#include <iostream>
#include <string>

using namespace std;

string StringStripper(string & phrase);

int main() {
    string word;

    word = "He345llo w$%!orld!";

    cout << endl <<endl;
    cout << "The word is : " << word << endl;
    cout << "StringStripper makes: " <<  StringStripper(word) << endl;
    cout << "The word is : " << word << endl;
    cout << endl <<endl;

    return 0;
}

string StringStripper(string & phrase){
    string fixedString;
    int i;

    for(i = 0; i < phrase.size(); i++) {
       if( isalpha(phrase[i])) {
            fixedString  += tolower(phrase[i]);
            //fixedString  = fixedString + tolower(phrase[i]);
       }
    }

    phrase = "I CHANGE IT";

    return fixedString;
}