PrestoSoft Community

I cannot figure out the meaning of lines in diff file ExamDiff Pro produces.

3936391,3936392a3936391,3936392
< 00
< 00
---
> 94
> 6A

3936828,3936829a3936829,3936830
< 61
< 63
---
> 6C
> 65

3936837a3936833,3936837
> 54
> 65
> 61
> 63
> 68

In 1st case, the 1st number is the same with second number ...