John is thinking about watching a football game with his friend. John is willing to pay HK$130 for watching the game. A ticket of the game costs HK$80 and he will have to cancel his part time job that pays HK$263. Normally, he would be unwilling to do the part time job for less than HK$Y. (John views the unpleasantness of the part time job as an offset against its salary.) John will decide to watch the game if Y is at least [