dataset: </string2> and </string2>
size:           [20]           [20]
position        string2         string2         difference          
------------------------------------------------------------
[ 8 ]            e            9
[ 8 ]            f             
[ 8 ]            9             
[ 9 ]            e            0
[ 9 ]            f             
[ 9 ]            0             
[ 10 ]            e            1
[ 10 ]            f             
[ 10 ]            1             
[ 11 ]            e            2
[ 11 ]            f             
[ 11 ]            2             
[ 12 ]            3            e
[ 12 ]                         f
[ 12 ]                         3
[ 13 ]            4            e
[ 13 ]                         f
[ 13 ]                         4
[ 14 ]            5            e
[ 14 ]                         f
[ 14 ]                         5
[ 15 ]            6            e
[ 15 ]                         f
[ 15 ]                         6
24 differences found
EXIT CODE: 1