Write ABCD.. with use of Nemeric keys in Notepad

In notepad

press alt key +65 (i.e keeping alt pressed and press 6 and 5) This is Capital A

press alt +66 is B

press alt +67 is C and so on… upto

alt+90 is Z

Small letters starts from

alt+97 is a

alt+98 is b and so on………