Due to the complexity and importance of the solution developed for this contest and many overlapping contests during its submission period it is proposed to extend the submission and voting periods by two weeks to increase the quality and the quantity of the submitted solutions.
As a result, the submission period would end on the 28.07.2021 23:59:59 UTC and the voting period would end 20 days after that on 17.08.2021 23:59:59 UTC.