# Geometric progression

Geometric progression is defined as a sequence of

, where each next element is obtained by multiplying the previous one with a number `q`

.For example

`100, 200, 400, 800, 1600, ...`

is a geometric progression, where `b1 = 100`

and `q = 2`

.So, to obtain the

`n`

-th number in the sequence when having the first element and the number `q`

, one can use the formula:Given the first number in the sequence

, the number `q`

, and the number `n`

, print the `n`

-th element of the sequence

.Input | Output |

95
3
2 | 285 |

#### Constraints

Time limit: 2 seconds

Memory limit: 512 MB

Output limit: 1 MB