@staticmethod
def int2Char64(_hex):
    """
        Taken From Java APK Source Code
        """
    if _hex >= 0 and _hex < 26:
        return 65 + _hex
    if _hex >= 26 and _hex < 52:
        return 97 + _hex - 26
    if _hex >= 52 and _hex < 62:
        return 48 + _hex - 52
    if _hex == 62:
        return 95
    if _hex == 63:
        return 45
    return -1
