param ([int]$c, [string]$p1)
$p2 = Join-Path $p1 -ChildPath "Greater"
New-Item -Path $p2 -ItemType 'Directory' -Force
Get-ChildItem -Path $p1 | Where-Object {$_ -match "[$c-9]"} | Foreach-Object {Move-Item -Path $_.FullName -Destination $p2}