How to enter 4 digit days in dynamic variable

Hi All,

I want my date field in the selection screen to be filled up with 1092 days back to todays date by variant. When I am trying 'Current date -xxx, current date +yyy' with Dynamic variant, it is showing a error message saying 'Entry too long (enter in the format __~V)'. Can anyone plaese explain what is this format or is there any other way to achieve this.

Thanks,

Manjunatha