It's numpad notation. Look at the numpad on your keyboard.
789
456
123
2 is down, 6 is forward, 8 is up, 4 is back. So 236 is quarter circle forward. P is punch, K is kick, H is hold. T is P+H.
EDIT: As for how to fight Leifang, just play passively until she does something punishable. Leifang...