URI Online Judge | 1014

Consumption

Adapted by Neilor Tonin, URI Brazil

Timelimit: 1

Calculate a car's average consumption being provided the total distance traveled (in Km) and the spent fuel total (in liters).

Input

The input file contains two values: one integer value X representing the total distance (in Km) and the second one is a floating point number representing the spent fuel total, with a digit after the decimal point.

Output

Present a value that represents the average consumption of a car with 3 digits after the decimal point, followed by the message "km/l".

Input Sample Output Sample

500
35.0

14.286 km/l

2254
124.4

18.119 km/l

4554
464.6

9.802 km/l