Today, I sat down in afternoon(2:00PM) to attend the contest and thinking that i will solve A and B and get a positive delta but,contest author had something other ideas in their mind, i solved A and then i move to B that ok i have plenty of time i can get AC on B.But when i read B i was just frozen not because that question was hard but because i didn,t even understand the question and it's meaning.I know my english is not that bad but after reading the question i am thinking about taking an english class near my house..i am just exhausted, first cheating is increased in codeforces due to AI and now this..

wish me good luck for the next contest..

i get -78 delta...