The surface area of the pyramid
Execution time limit is 1 second
Runtime memory usage limit is 128 megabytes
Find the total surface area of the regular square pyramid with base length a and height h.
Input
One line contains the base length a and height of pyramid h. All input data are integers, not exceeding 100.
Output
Print the total surface area of the regular square pyramid.
Examples
Input #1
Answer #1
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