You are given a math word problem and you are supposed to only use subtraction on the numbers embedded in the text to answer the following question and then only report the final numerical answer.

Context: A farmer had 177 tomatoes and 12 potatoes in his garden. If he picked 53 tomatoes

Question: How many tomatoes and potatoes does he have left?
136

Context: Bobby ate 23 pieces of candy. If he initially had 30 pieces of candy

Question: How many pieces of candy does he still have left?
7

Context: Jack received 10 emails in the morning, 7 emails in the afternoon and 17 emails in the evening.

Question: How many more emails did Jack receive in the morning than in the afternoon?
3