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## priorprime
### Instructions
You are given an integer.
Your function must return sum of all prime numbers prior to the number exclusively. The number is not included.
### Expected function and structure
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```go
package main
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func PriorPrime(x int) int {
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}
```
### Usage
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Here is a possible program to test your function:
```go
package main
import "fmt"
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func main() {
fmt.Println(PriorPrime(14))
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}
```
Its output:
```console
$ go run .
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41
$
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```