prompt: John's car needs a new engine.  The labor costs $75 an hour for 16 hours.  The part itself cost $1200.  How much did the repairs cost in total?
messages.content: John's car needs a new engine.  The labor costs $75 an hour for 16 hours.  The part itself cost $1200.  How much did the repairs cost in total?
messages.role: user
messages.content: The labor cost 16*$75=$<<16*75=1200>>1200
  So the total cost was $1200+$1200=$<<1200+1200=2400>>2400
  #### 2400
messages.role: assistant