void getAvailableLetters(char lettersGuessed[], char availableLetters[])
{
    char alphabet[]={'a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z'};
    int LG,LG2,LA=0;
    for (LG=0;LG<=strlen(alphabet)-1;LG++)
    {
        for(LG2=0;LG2<=strlen(lettersGuessed)-1;LG2++)
        {
            if (alphabet[LG]==lettersGuessed[LG2])
            {
                break;
            }
            else if(alphabet[LG]!=lettersGuessed[LG2] &&LG2==strlen(lettersGuessed)-1)
            {
                availableLetters[LA]=alphabet[LG];
                LA++;
            }
    }
    }
}