{# Grading needs an account, so show the task but not a runner
that would fail the moment it is submitted. #}
Kirish
Sonlar qatori: 2, 4, 6, ?
Oson
Qatordagi keyingi sonni toping.
Mashqni yechish uchun hisobingizga kiring
Javobingiz tekshiriladi, izoh beriladi va XP yig'iladi.