The conversation between human and AI assistant.
[|Human|] Based on this passage, how many miles did Gorbachev walk each week for his round trip commute to school?
[|AI|] According to this passage, Gorbachev's round trip walking commute to school was 24 miles per week. He walked 12 miles each way and travelled to and from school only once per week.
[|Human|] 
Based on this passage, how many miles did Gorbachev walk each week for his round trip commute to school?