arithmetical problem

arithmetical problem Hamburg Places Parking lot Transport Traffic infrastructure Passenger traffic Motoring Lanes & trails Road sign Tar Asphalt Colour Stone Concrete Sign Digits and numbers Signs and labeling Signage Warning sign Line Stripe Network Safety Orderliness Design Idea Concentrate Creativity Arrangement Perspective Planning Precision Parking Colour photo Exterior shot Pattern Structures and shapes Deserted Deep depth of field Bird's-eye view