Simple PowerShell Password Generator

$Alphabets = 'a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z'
$numbers = 0..9
$specialCharacters = '~,!,@,#,$,%,^,&,*,(,),>,<,?,\,/,_,-,=,+'
$array = @()
$array += $Alphabets.Split(',') | Get-Random -Count 4
$array[0] = $array[0].ToUpper()
$array[-1] = $array[-1].ToUpper()
$array += $numbers | Get-Random -Count 3
$array += $specialCharacters.Split(',') | Get-Random -Count 3
($array | Get-Random -Count $array.Count) -join ""