# Calculate exp(x)

Implement a function

`exp(x)`

that would compute and return the result of with the following formula:The input contains a single integer

`x`

.The function

`exp`

should compute and return the expression up until `n = 10`

(inclusive).The program should print the result of

`exp(x)`

, `exp(2x)`

, `exp(x/2)`

.Input | Output |

1 | 2.7182818011463845
7.388994708994708
1.6487212706873655 |

#### Constraints

Time limit: 1 seconds

Memory limit: 512 MB

Output limit: 1 MB