CREATE PROCEDURE EXEC$B_Int_JOIN_test
                 @str    nvarchar(MAX),
                 @tookms int OUTPUT AS

EXEC EXEC$A_Int_JOIN_test @str, @tookms OUTPUT

go


CREATE PROCEDURE EXEC$B_Str_JOIN_test
                 @str    nvarchar(MAX),
                 @tookms int OUTPUT AS

EXEC EXEC$A_Str_JOIN_test @str, @tookms OUTPUT
go