prompt: Ibrahim wants to buy an MP3 player for 120 euros and a CD for 19 euros. He has 55 euros in savings. His father participates in his purchase by giving him 20 euros. How much money does Ibrahim lack?
messages.content: Ibrahim wants to buy an MP3 player for 120 euros and a CD for 19 euros. He has 55 euros in savings. His father participates in his purchase by giving him 20 euros. How much money does Ibrahim lack?
messages.role: user
messages.content: The total price of the purchases is 120 + 19 = <<120+19=139>>139 euros.
  The amount of money he has after his father's help is 55 + 20 = <<55+20=75>>75 euros.
  The purchase amount is 139 euros, so he is missing 139 – 75 = <<139-75=64>>64 euros.
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messages.role: assistant