AtCoder Beginner Contest 101
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Problem Statement
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There is always an integer in Takahashi's mind.
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Initially, the integer in Takahashi's mind is $0$. Takahashi is now going to eat four symbols, each of which is + or -. When he eats +, the integer in his mind increases by $1$; when he eats -, the integer in his mind decreases by $1$.
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The symbols Takahashi is going to eat are given to you as a string $S$. The $i$-th character in $S$ is the $i$-th symbol for him to eat.
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Find the integer in Takahashi's mind after he eats all the symbols.
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Constraints
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- The length of
$S$is$4$. - Each character in
$S$is+or-.
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Input
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Input is given from Standard Input in the following format:
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S翻译中…
Output
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Print the integer in Takahashi's mind after he eats all the symbols.
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样例
Input #1
+-++
Output #1
2
- Initially, the integer in Takahashi's mind is $0$.
- The first integer for him to eat is `+`. After eating it, the integer in his mind becomes $1$.
- The second integer to eat is `-`. After eating it, the integer in his mind becomes $0$.
- The third integer to eat is `+`. After eating it, the integer in his mind becomes $1$.
- The fourth integer to eat is `+`. After eating it, the integer in his mind becomes $2$.
Thus, the integer in Takahashi's mind after he eats all the symbols is $2$.
Input #2
-+--
Output #2
-2
Input #3
----
Output #3
-4
题目信息
题面与样例版权归 AtCoder 及出题人所有；中文翻译由 AI 生成（CI 管线），如有出入请以原文为准。