From ASMBits

Consider a memory array of with A address lines and D data lines. What is the capacity of this memory (in bits)?

Write a function that returns the memory capacity (in bits). The capacity will not overflow a 32-bit unsigned integer.

unsigned int memsize(unsigned int A, unsigned int D);

Expected solution length: Around 4 lines.

Sample Input

memsize(12, 8)

Sample Output


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