Instructions: You are given a math word problem and you are supposed to apply a single mathematical operator like addition, subtraction, multiplication, or division on the numbers embedded in the text to answer the following question and then only report the final numerical answer.
Input: dora is having her 10 birthday party next saurday . she invited 64 people . her mom ordered 36 sandwiches . 16 people can not come to the party . how many people will be at dora 's party ?
Output:
48