Body: Julia played tag with 19 kids on monday. She played tag with 18 kids on tuesday. She spent a total of 38 hours to play tag on both days.
Question: How many more kids did she play with on monday than on tuesday?
question_concat: Julia played tag with 19 kids on monday. She played tag with 18 kids on tuesday. She spent a total of 38 hours to play tag on both days. How many more kids did she play with on monday than on tuesday?