No.857 素振り
タグ : / 解いたユーザー数 496
作問者 :
nmnmnmnmnmnmnm
/ テスター :
yuki2006
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Problem Statement
Yuki has decided to do practice swings once a day, at 1 o'clock.
At 0 o'clock when day 1 begins, the number of practice swings is 0, and he starts swinging on day 1.
However, he takes a break from practice swings on day $X$ and day $Y$ only (this may include day 1).
How many practice swings has Yuki done at the end of day $Z$?
Input
$X$ $Y$ $Z$
$X$, $Y$, $Z$ are positive integers. $1 \le X < Y \le 10^{18}$. $1 \le Z \le 10^{18}$.
Output
Output the answer, followed by a newline.
Sample
Sample 1
Input
2 5 4
Output
3
He did 1 practice swing on day 1.
He took a break from practice swings on day 2.
He did 1 practice swing on day 3.
He did 1 practice swing on day 4.
At the end of day 4, he has done 3 practice swings.
Sample 2
Input
1 2 1
Output
0
He takes a break from practice swings on both day 1 and day 2.
At the end of day 1, Yuki has not done a single practice swing.
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