Codeforces 239D: Accepted
Codeforces 237D: Accepted
Codeforces 236D: Accepted
Codeforces 233D: Accepted
Codeforces 231D: Accepted
Codeforces 230D: Wrong Answer
Codeforces 230D: Accepted
Codeforces 228D: Accepted
Codeforces 225D: TLE
Codeforces 225D: Accepted
Codeforces 224D: Accepted
Codeforces 222D: Wrong Answer
Codeforces 222D: Accepted
Codeforces 221D: Accepted
Codeforces 219D: Accepted
Codeforces 218D: Wrong Answer
Codeforces 218D: Accepted
Codeforces 216D: Wrong Answer
Codeforces 216D: Accepted
Codeforces 215D: Accepted