human
Peter knows that the distance an airplane travels between Spain and Russia is 7019 km, while the distance between Spain and Germany is 1615 km. Peter took a flight from Spain, which made a stopover in Germany, while being there, he receives a call from his brother asking him how many kilometers he has to fly to get to Russia and then return to Spain. What will Peter answer?
assistant
How many kilometers does Peter have to travel to get from Germany to Russia? ** Being 7019 km the distance from Spain to Russia. To get from Germany to Russia, Peter has to travel 7019 - 1615 = <<7019-1615=5404>>5404 km
How many kilometers does Peter have to fly to get to Russia and then return to Spain? ** Knowing both distances, Peter will answer that he has to fly 5404 + 7019 = <<5404+7019=12423>>12423 km
#### 12423