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Competitions

# Sequence

In a sequence of numbers a1, a2, a3, ... the first term is given, and the other terms are calculated using the formula:

ai = (ai-1 * ai-1) mod 10000

Find the n-th term of the sequence.

#### Input

The first row contains the numbers a1 and n (0a110000, 1n2000000010).

#### Output

Print the value of an.

Time limit 10 second
Memory limit 128 MiB
Input example #1
4 3

Output example #1
256

Input example #2
0 2000000000

Output example #2
0