Question

Ticket Fine

On a certain train, Chef- the ticket collector, collects a fine of Rs. X if a passenger is travelling without a ticket. It is known that a passenger carries either a single ticket or no ticket.

P passengers are travelling and they have a total of Q tickets. Help Chef calculate the total fine collected.

P passengers are travelling and they have a total of Q tickets. Help Chef calculate the total fine collected.

Input

The first line contains a single integer T, the number of test cases. T lines follow. Each following line contains three integers separated by spaces, whose description follows.

The first integer, X, is the fee in rupees.

The second integer, P, is the number of passengers on the train.

The third integer, Q, is the number of tickets Chef collected.

1 ≤ T ≤ 10

1 ≤ X ≤ 10

0 ≤ Q ≤ P ≤ 10

The first integer, X, is the fee in rupees.

The second integer, P, is the number of passengers on the train.

The third integer, Q, is the number of tickets Chef collected.

**Constraints**1 ≤ T ≤ 10

1 ≤ X ≤ 10

0 ≤ Q ≤ P ≤ 10

Output

The output must consist of T lines.

The i

The i

^{th}line must contain a single integer, the total money(in rupees) collected by Chef corresponding to the i^{th}test case.Example

Sample Input :

4

4 1 1

2 10 7

8 5 4

9 7 0

Sample Output :

0

6

8

63

Explanation :

The total number of passengers travelling without ticket are 1 - 1 = 0. So the total fine collected is 0.4 = 0 rupees.

4

4 1 1

2 10 7

8 5 4

9 7 0

Sample Output :

0

6

8

63

Explanation :

The total number of passengers travelling without ticket are 1 - 1 = 0. So the total fine collected is 0.4 = 0 rupees.