minko.va, secondary school number 21 in the city of mogilev, positive, purposeful and erudite, and her class teacher, an english teacher. positively strives for the better, and her class teacher, mathematics teacher alexandra olegovna gaikevich. nikita kondarevich, gymnasium number 13 of the city of minsk, his motto came, i saw. his class teacher, a belarusian language teacher, also won and literature marina nikolaevna golubich. i have one more person left to introduce, this is our scientific expert ekaterina duko. head of the department of methodological support for science and mathematics education of the national institute of education. in case of controversial situations, it is she who will decide whose side is right. ekaterina, hello. hello, vasya. hello guys. good afternoon guys, we are glad to welcome you to our playground, and before we start playing, before i start asking questions, and you, nervous to answer them, i suggest you support each other with applause, right now in the tea