Is it possible to prefix routings in Symfony 1.4?

Question

symfony

Hello!
There was such a problem with Symfony 1.4:
there is an application, in the routing.yml file of which, a bunch of routes are registered. There is a need to add a prefix to the URI of each route, for example:
some_route:
url: /some/route
param: { ... }
I would like to get an output address of the form:
prefix/some/route
The simplest solution is to prefix each of the routes , this is certainly good, but I suspect that with the help of Symfony this problem can be solved more concisely.
Thank you in advance!