Text of value changed by adding 1 when move data to #ff why and how s?

I work on SQL server 2012 I face issue on #finaltable temp I have value field

when check the value I found it 32-Bit when select and display data from #ff I found it

132-BIT . the idea that it add 1 to text of value

so are there are any thing on statement below affect on Value and change it

on finaltable value is 32-bit
on #ff value is 132-bit

I dont know why this happen

so can any one help me how to solve it and why this happen

why add 1 to text

select * INTO #FF from (
SELECT DISTINCT
[InputID],PART_ID,[Vendor ID],Manufacturer,[Digi-Key Part No.] ,[Mfr Part No.],[Description],Category,Family ,Obsolete ,[Non-Stock]
, [Part_Status],partNumber,CompanyName,DKFeatureName2,[Variant Number],IsUnit,
SUBSTRING((
SELECT isnull(StarFormat,'') + Value+ isnull(endFormat,'')
FROM #FinalTable
WHERE ([InputID] = Results.[InputID] and DkFeatureId = Results.DkFeatureId)
FOR XML PATH(''),TYPE).value('.', 'NVARCHAR(MAX)')
,1,5000) AS Value
FROM #FinalTable Results
where StatusId=3
union
SELECT
[InputID],PART_ID,[Vendor ID],Manufacturer,[Digi-Key Part No.] ,[Mfr Part No.],[Description],Category,Family ,Obsolete ,[Non-Stock] ,
[Part_Status],partNumber,CompanyName,DKFeatureName2,[Variant Number],IsUnit,Value/*,accepted_value_value Value*/ from #FinalTable where StatusId<>3
)T