Mr Ya has some stickers to give to his pupils as a reward for their good behaviour. If he gives $$13$$ stickers to each pupil, he will have an excess of $$190$$ stickers. If he gives $$17$$ stickers to each pupil, he will have an excess of $$50$$ stickers. How many stickers does Mr Ya have? 
Overseas Competition->Knowledge Point->Word Problem Modules->Questions Involving Sum, Difference and Multiples->Problems of Difference and Multiple