CF1157B Long Number
Description
You are given a long decimal number $ a $ consisting of $ n $ digits from $ 1 $ to $ 9 $ . You also have a function $ f $ that maps every digit from $ 1 $ to $ 9 $ to some (possibly the same) digit from $ 1 $ to $ 9 $ .
You can perform the following operation no more than once: choose a non-empty contiguous subsegment of digits in $ a $ , and replace each digit $ x $ from this segment with $ f(x) $ . For example, if $ a = 1337 $ , $ f(1) = 1 $ , $ f(3) = 5 $ , $ f(7) = 3 $ , and you choose the segment consisting of three rightmost digits, you get $ 1553 $ as the result.
What is the maximum possible number you can obtain applying this operation no more than once?
Input Format
The first line contains one integer $ n $ ( $ 1 \le n \le 2 \cdot 10^5 $ ) — the number of digits in $ a $ .
The second line contains a string of $ n $ characters, denoting the number $ a $ . Each character is a decimal digit from $ 1 $ to $ 9 $ .
The third line contains exactly $ 9 $ integers $ f(1) $ , $ f(2) $ , ..., $ f(9) $ ( $ 1 \le f(i) \le 9 $ ).
Output Format
Print the maximum number you can get after applying the operation described in the statement no more than once.