Remaining Raw Material

You are given an integer T representing the number of test cases. For each test case, you are provided with three integers: N (the initial amount of raw material), U (the raw material consumption per production cycle), and C (the number of production cycles).

The task is to compute the remaining raw material after all production cycles. The remaining raw material is computed as follows:

$$\text{remaining} = \max(N - U \times C,\; 0)$$

For each test case, output the remaining raw material on a new line.

inputFormat

The first line of input contains an integer T, the number of test cases. Each of the next T lines contains three space-separated integers: N, U, and C.

outputFormat

For each test case, output a single integer representing the remaining raw material after performing the given production cycles. Each answer should be printed on a new line.

## sample

3
100 10 5
50 20 3
200 50 5

50
0
0

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