Hi, CodeForces.

Today I tried to implement interactive problem 753B - Interactive Bulls and Cows (Easy) in Ruby. But all of my submissions (23586661, 23586795, 23586863, 23611181) got "Idleness limit exceeded on test 1".

Also this problem (and it's Hard version) has no Accepted submissions in Ruby.

Is CF bugged or am I doing something wrong?

UPD: Solved this question: the reason was my carelessness in reading problem samples, and because of that my solution was incorrect. Correct solution — 23649752.