Sleeping car seats numeration:
Bottom seats -
odd numbers,
Upper seats -
even numbers
Euro-numeration
Ñarriage with numbered reserved seats numeration:
Bottom seats -
odd numbers,
Upper seats -
even numbers
Soft-seated carriage numeration:
Bottom seats -
odd numbers
Euro-numeration
Soft-seated carriage numeration
international traffic (3 seats):
1st class cars without middle seats (13,14,23...)
Bottom seats -
red color,
Upper seats -
yellow color,
Middle -
blue color