list of the 25 countries

1.Albania
2.Armenia
3.Belarus
4.Bosna and Hercegovina
5.Bulgaria
6.Czech Republic
7.Cyprus
8.Croatia
9.Estonia
10.Georgia
11.Greece
12.Lituania
13.Latvia
14.Montenegro
15.Poland
16.North Macedonia
17.Republic Moldova
18.Romania
19.Russia
20.Serbia
21.Slovenia
22.Slovakia
23.Turkey
24.Ukraine
25.Hungary