To determine the row with the difference, we need to compare each pair of characters in the two sets of characters in each row. The row where one character in the two sets is different is the row with the difference.
For example, let's consider the following rows:
- ABCDEFGH - ABCDEFGH
- ABCDEFGH - ABCDEFGH
- ABCDEFGH - ABCDEFGH
- ABCDEFGH - ABCDEFGH
- ABCDEFGH - ABCDEFGH
- ABCDEFGH - ABCDEFGH
In this case, all rows have identical sets of characters, so there is no row with a difference.