People eat pancake during the Maslenitsa festival celebrations in Moscow, Russia, Feb. 29, 2020. Maslenitsa is a traditional Russian holiday to celebrate the beginning of spring, which lasts from Feb. 24 to March 1 this year. (Xinhua/Evgeny Sinitsyn)

People in costumes march on Manezhnaya Square during the Maslenitsa festival celebrations in Moscow, Russia, Feb. 29, 2020. Maslenitsa is a traditional Russian holiday to celebrate the beginning of spring, which lasts from Feb. 24 to March 1 this year. (Xinhua/Evgeny Sinitsyn)

People in costumes march on Manezhnaya Square during the Maslenitsa festival celebrations in Moscow, Russia, Feb. 29, 2020. Maslenitsa is a traditional Russian holiday to celebrate the beginning of spring, which lasts from Feb. 24 to March 1 this year. (Xinhua/Evgeny Sinitsyn)

People in costumes march on Manezhnaya Square during the Maslenitsa festival celebrations in Moscow, Russia, Feb. 29, 2020. Maslenitsa is a traditional Russian holiday to celebrate the beginning of spring, which lasts from Feb. 24 to March 1 this year. (Xinhua/Evgeny Sinitsyn)

People in costumes march on Manezhnaya Square during the Maslenitsa festival celebrations in Moscow, Russia, Feb. 29, 2020. Maslenitsa is a traditional Russian holiday to celebrate the beginning of spring, which lasts from Feb. 24 to March 1 this year. (Xinhua/Evgeny Sinitsyn)

People in costumes march on Manezhnaya Square during the Maslenitsa festival celebrations in Moscow, Russia, Feb. 29, 2020. Maslenitsa is a traditional Russian holiday to celebrate the beginning of spring, which lasts from Feb. 24 to March 1 this year. (Xinhua/Evgeny Sinitsyn)

People in costumes march on Manezhnaya Square during the Maslenitsa festival celebrations in Moscow, Russia, Feb. 29, 2020. Maslenitsa is a traditional Russian holiday to celebrate the beginning of spring, which lasts from Feb. 24 to March 1 this year. (Xinhua/Evgeny Sinitsyn)