Exception calling "ToInt64" with "2" argument(s): "Additional non-parsable characters are at the 
end of the string."
At line:14 char:1
+ $decimal = [System.Convert]::ToInt64($premiereLigneHexa, 16)
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
    + FullyQualifiedErrorId : FormatException