To write the Halfwidth Hangul Letter Rieul Thieuth symbol ᆴ on keyboard using ALT codes; ALT+65454, just hold down the ALT key while typing the alt key code 65454. You ha🃏ve to use the numeric keypad of your keyboard. If you don not have numeric keypad, hold down the Fn and ALT ke🍸ys while typing the alt code number.