#AT1181. A - Buying Sweets
A - Buying Sweets
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A - Buying Sweets
Score : $100$ points
Problem Statement
You went shopping to buy cakes and donuts with $X$ yen (the currency of Japan).
First, you bought one cake for $A$ yen at a cake shop. Then, you bought as many donuts as possible for $B$ yen each, at a donut shop.
How much do you have left after shopping?
Constraints
- $1 \leq A, B \leq 1$ $000$
- $A + B \leq X \leq 10$ $000$
- $X$, $A$ and $B$ are integers.
Input
Input is given from Standard Input in the following format:
Output
Print the amount you have left after shopping.
1234
150
100
84
You have $1234 - 150 = 1084$ yen left after buying a cake. With this amount, you can buy $10$ donuts, after which you have $84$ yen left.
1000
108
108
28
579
123
456
0
7477
549
593
405