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Unzipstring function

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zainabdnaya 2 years ago committed by Hamza elkhatri
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      subjects/unzipstring/README.md

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subjects/unzipstring/README.md

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## Unzipstring
### Instructions
Unzipstring is a simple function that takes a string in of form of a number and an alphabet like (2a) and returns the original string (aa).
- the number before the alphabet should be between 0 to 9
- The one alphabet after each number should be between a to z or A to Z
- it can be two numbers or two alphabets in a row
- if the Input string doesn't respect the format return `Invalid Input`
### Expected Function
```go
func Unzipstring(s string) string {
//code here
}
```
### Usage
Here is a possible program to test your function:
```go
package main
import (
"fmt"
"piscine"
)
func main() {
fmt.Println(piscine.Unzipstring("6H8a"))
fmt.Println(piscine.Unzipstring("3p6i1W"))
fmt.Println(piscine.Unzipstring("2O5u2H0e"))
fmt.Println(piscine.Unzipstring("2f"))
fmt.Println(piscine.Unzipstring("2a 6p8f"))
fmt.Println(piscine.Unzipstring("2p4;7g"))
fmt.Println(piscine.Unzipstring("2t4dD"))
fmt.Println(piscine.Unzipstring("82t4D"))
}
```
And its output :
```console
$ go run .
HHHHHaaaaaaaa
pppiiiiiiWWW
OOuuuuuHH
ff
Invalid Input
Invalid Input
Invalid Input
Invalid Input
```
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