Initially, there are \(K\) number of almonds in the bowl. Alice eats \(A\) almonds in the morning and \(B\) number of almonds is added to her bowl in the evening. Your task is to determine the number of consecutive days for which Alice will be able to eat almonds.

Input format

• First line: \(T\) denoting the number of test cases
• For each test case
  • First line: \(A\) 
  • Second line: \(B\)
  • Third line: \(K\)

Output format

Print the answer for each test case in a new line. If the activity regarding almonds cannot stop forever, then print \(-1\).

Constraints

\(1 \le T \le 5 \)

\(0 \le A \le 10^9 \)

\(0 \le B \le 10^9 \)

\(0 \le K \le 10^9 \)