The purpose of this exercise is to train you in usage of simple integer operations.
Estimated workload of this exercise is 30 min.
Consider a snail travels up a tree a feet each day. Then snail slides down b feet each night. Height of the tree is h feet.
Please, proceed to Snail class and write a program that prints number of days for the snail to reach the top of the tree.
Program reads a, b, h line by line. Input values are guaranteed to be positive integers.
If the snail cannot reach the top of the tree, print the message Impossible.
Input:
4
2
14
Output:
6
Input:
4
3
10
Output:
7
Input:
4
4
10
Output:
Impossible
Input:
4
4
1
Output:
1