1.6. Exercise: Conflict of Metrics

You need to go from a building in the city of Pawnee to a building in the city of Eagleton. Your boss Ron gives you the distance between two buildings in miles because he identifies himself as a Proud American. But your friend Donna, who is going to drive you there, uses a European car and she tells you the average speed you can travel in km/h (kilometers per hour).

Given the distance in miles on the first line and speed in km/h on the second line, calculate the time it will take you to travel to Eagleton in minutes. Print this time as a float with 2 digits after decimal point.

Hint: One mile is approximately 1.6 kilometer.

Sample I/O:

Input:
60
100

Output:
57.60

Input:
79
150

Output:
50.56