void CharToInt()
{
	vector<byte> Characters={'A','B','C','D','a','b','c','d'};
	vector<int> Numbers;
	Numbers=Characters;
	string strOutPut;
	int MyInt;
	for (int i=0; i<8; i++)
	{
		char MyChar[1]=Characters[i];
		MyInt=Numbers[i];
		strOutPut.Format("%s,%d",MyChar, MyInt);
		out_str(strOutPut);
	}
}

#define GET_UPPER_CASE_LETTER(n) ((char)((n) - 1 + 'A'))
#define GET_LOWER_CASE_LETTER(n) ((char)((n) - 1 + 'a'))
void OutputUpperCaseLetters()
{
    for( int n = 1; n <= 26; n++ )
        printf("%c\n", GET_UPPER_CASE_LETTER(n));
}
void OutputLowerCaseLetters()
{
    for( int n = 1; n <= 26; n++ )
        printf("%c\n", GET_LOWER_CASE_LETTER(n));
}