There are no 13 salaries in Russia.

The State Duma announced the readiness of Russians to give up the 13th salary for the sake of Donbass
Russians are ready to lower their standard of living as a result of sanctions that may be imposed due to the recognition of Donbass.
This opinion
was shared by the deputy from the Communist Party of the Russian Federation Kazbek Taisayev at a meeting of the parliament, broadcast on the YouTube channel of RBC.

"The people of Russia fully and unanimously support our resolution
and are ready to give up not only the 13th salary," he said.