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A subsequence of a number is a series of (not necessarily contiguous) digits of the number. For example, 12345 has subsequences that include 123, 234,

A subsequence of a number is a series of (not necessarily contiguous) digits of the number. For example, 12345 has subsequences that include 123, 234, 124, 245, etc. Your task is to get the maximum subsequence below a certain length.

def max_subseq(n, l): """ Return the maximum subsequence of length at most l that can be found in the given number n. For example, for n = 20125 and l = 3, we have that the subsequences are 2 0 1 2 5 20 21 22 25 01 02 05 12 15 25 201 202 205 212 215 225 012 015 025 125 and of these, the maxumum number is 225, so our answer is 225. >>> max_subseq(20125, 3) 225 >>> max_subseq(20125, 5) 20125 >>> max_subseq(20125, 6) # note that 20125 == 020125 20125 >>> max_subseq(12345, 3) 345 >>> max_subseq(12345, 0) # 0 is of length 0 0 >>> max_subseq(12345, 1) 5 """ Write the max_subseq function. 

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