You are given a math word problem and you are supposed to apply addition or subtraction mathematical operators on the numbers embedded in the text to answer the following question and then only report the final numerical answer.
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Question: Connie has 323 marbles . Juan has 175 more marbles than Connie . How many marbles does Juan have ?

Answer: 498

Question: There were 58 geese and 37 ducks in the marsh . How many birds were in the marsh ?

Answer: 95

Question: Carla has some marbles . She bought 134 marbles . Now she has 187 marbles . How many did she start with ?

Answer:
53