Without Text
题目描述
C. Without Text
time limit per test
2 secondsmemory limit per test
64 megabytesinput
standard inputoutput
standard output
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Input
The only line of the input is a string (between 1 and 50 characters long, inclusive). Each character will be an alphanumeric character or a full stop ".".
Output
Output the required answer.
Examples
Input
Codeforces
Output
-87
Input
APRIL.1st
Output
17
题目来源：fps-www.educg.net-codeforce-1-2833.xml.zip；FPS 共享题包，题包内第 774 题。保留原作者与原赛事署名。