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A company requires a program that calculates the number of solar panels it manufactures that can be installed on a rectangular area of roof.

Task:

Write a program that takes, as input, the width and depth of the rectangular roof section, and outputs the maximum number of solar panels that can be installed on it.

Constraints:

[Note: you do not need to check constraints in your code for this competition - they are just for information about the range of test data values.]

• The solar panels can only be installed vertically.
• The solar panels are 0.95m wide and 1.5m tall.
• No space is needed between adjacent panels and they can be fitted to the very edges of the roof section.

Input format:

• First line: A float (The width of the roof section.)
• Second line: A float (The depth of the roof section.)

Output format:

• An integer.

Example:

5.1
2.0

5