Element Rule - Match-Value Help

Ok,

 

So I've tried just about every option I can think of. Need some help from the community.

 

element-rule
                        name                           ModTo
                        parameter-name                 To
                        type                           uri-user-only
                        action                         replace
                        match-val-type                 any
                        comparison-type                case-sensitive
                        match-value                    1.{10}$  **I need this to match any string 11 digits long that starts with a 1
                        new-value                      "9"+$0

 

 

I need another match-value that matches anything 12 to 18 digits for INT.

 

Any help is appreciated.