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Learning Opportunities

This puzzle can be solved using the following concepts. Practice using these concepts and improve your skills.

Statement

 Goal

Decimal isn't the only base ten positional numbering system!

Write a simple calculator that operates in "decimary" notation to sum a list of positive integer values. Decimary is a fun name for what mathematics calls bijective numeration base ten, which uses A to represent ten and lacks a zero digit.

The system is better illustrated than explained. Starting from one, these numerals are written:

1, 2, 3, 4, 5, 6, 7, 8, 9, A = ten, 11, 12, 13, 14, 15, 16, 17, 18, 19, 1A = ten plus ten = twenty, 21, 22, 23, 24, 25, 26, 27, 28, 29, 2A = thirty, 31, ...

88, 89, 8A = ninety, 91, 92, 93, 94, 95, 96, 97, 98, 99, 9A = ninety plus ten = one hundred, A1 = a hundred and one, A2, A3, A4, A5, A6, A7, A8, A9, AA = a hundred and ten, 111, ...

199, 19A = two hundred, 1A1 = two hundred and one, ...
Input
Line 1: An integer count representing the number of input values
Line 2: A string of decimary values, separated by spaces
Output
Line 1: A string in "decimary" notation representing the summation
Constraints
2 <= count < 10
1 <= length of each decimary representation < 10
Example
Input
3
A A 12
Output
32

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