The economy must be economical!
A penny saved is a penny earned!
(Folk proverb)
While the wealthy may have money in abundance, pensioners, the unemployed, and especially the homeless, often live by the economic principle expressed in the folk proverb above.
In developed countries, young people are also encouraged to save, sometimes in quite unusual ways. For example, a young specialist named Ostap Korkuna, who works at Facebook, received part of his salary in a bag of cents. Now, he has plenty of change to buy coffee from the office vending machines.
Our task is straightforward: given the known cost of a drink in a bottle and the cost of an empty bottle, both priced in hryvnias with kopecks, determine how many drinks Ostap can buy. The amount of money in Ostap's wallet is also provided, including kopecks. Ostap can return the bottles after consuming the drinks to get some money back.
As a true programmer, Ostap isn't content with solving just one case. Therefore, you will need to solve multiple problems simultaneously, each with different values. Ostap wishes everyone success in solving this problem, and we echo his sentiment.
Input
Each line contains three non-negative real numbers: the cost of the drink with the bottle, the cost of the empty bottle, and the amount of money in Ostap's wallet. These numbers are given with no more than two decimal places and do not exceed 10^9.
Output
For each test case, output one number on a separate line, representing the solution to the problem.