So, I just completed programming 6. However, I had to try it for about 15 times until my application got the whole thing right. I checked some of the solutions that didn't get accepted, and it seems like only one or two characters were wrong in each one of them. This seems right because even commercial OCR programs never get it 100% correctly, but I'd still like to know if such thing was needed on OCR programs of other people who completed the mission.
There are 11 types of people in the world - those who understand binary, those who don't and those who already heard this joke.