Codeforces 190D: Accepted
Codeforces 189D: Accepted
Codeforces 186D: Accepted
Codeforces 168D: Accepted
Codeforces 165D: Wrong Answer
Codeforces 165D: Wrong Answer
Codeforces 165D: Wrong Answer
Codeforces 157D: Accepted
Codeforces 155D: Accepted
Codeforces 152D: Accepted
Codeforces 334D: Unsubmitted
Codeforces 151D: Accepted
Codeforces 149D: Accepted
Codeforces 148D: Accepted
Codeforces 146D: Accepted
Codeforces 144D: Accepted
Codeforces 143D: Accepted
Codeforces 141D: Accepted
Codeforces 140D: Accepted