Garmin multi country map - country-name and country-abbr

What are the values for country-name and country-abbr in mkgmap.args for maps with several countries?
I build a map for DEU and CZE.

If you use the recommend --bounds option those parameters are not needed. If not, you can specify the option multiple times.
Problem is separate the list of tiles.

Ok, thank you. I use the --bounds option.