Char to String

unsigned char* returnString(unsigned char inputValue)
{
    static unsigned char processedString[4];
    unsigned char firstDigitCounter = 0;
    unsigned char secondDigitCounter = 0;
    if (inputValue > 99)
    {
        while (inputValue > 99)
        {
            inputValue -= 100;
            firstDigitCounter++;
        }
        while (inputValue > 9)
        {
            inputValue -= 10;
            secondDigitCounter++;
        }
        processedString[0] = firstDigitCounter + 0x30;
        processedString[1] = secondDigitCounter + 0x30;
        processedString[2] = inputValue + 0x30;
        processedString[3] = '\0';
    }
    else
    {
        while (inputValue > 9)
        {
            inputValue -= 10;
            secondDigitCounter++;
        }
        processedString[0] = secondDigitCounter + 0x30;
        processedString[1] = inputValue + 0x30;
        processedString[2] = '\0';
    }
    return processedString;
}