Let A = {0, 1, 2} and let S be the set of all strings over A. Define a relation L from S to Znonneg follows: For every string s in S and every nonnega- tive integer n, as (s, n) E L means that the length of s is n. Then L is a function because every string in S has one and only one length. Find L(0201) and L(12).

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