Apples Prologue

Problem Source

Luogu P5709

Problem Description

Little B loves eating apples. She now has $m$ ($1 \le m \le 100$) apples; eating one apple takes $t$ ($0 \le t \le 100$) minutes, and she starts the next one immediately after finishing the previous one. Given that $s$ ($1 \le s \le 10000$) minutes have passed, how many whole apples does she still have?

Input Format

The input consists of three non-negative integers $m, t, s$.

Output Format

Print one integer: the answer.

Sample Input

50 10 200

Sample Output

30

Hint

• The model is the same as the previous problem: first compute how many were eaten, then subtract that from the total. But does a "half-eaten" apple count as eaten? Think about when you need to round up.
• Warning: $t$ may be $0$ — dividing by zero causes an immediate RE.

If you got an RE, why not check for division by zero?