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.

Q: Context: There were 174 parents in the program and 521 pupils too. 

 Question: How many more pupils were present compared to parents in the program?

A: 347
****
Q: Context: Baker made 13 cakes. He sold 91 of them and bought 154 new cakes. 

 Question: How many more cakes did baker buy than those he sold?

A: 63
****
Q: Context: 41 children were riding on the bus. At the bus stop some children got off the bus. Then there were 18 children left on the bus. 

 Question: How many more children were on the bus before the bus stop than there are now?

A:
23
****