I am setting a variable in SSIS package and I'm using an expression:

(dt_date)((dt_wstr, 4)year(dateadd("mm", -1, getdate()))+"-"+ right("0"+(dt_wstr,2)month(dateadd("mm", -6, getdate())),2)+"-01")

I need to get a default date as 01st March 2022.