If all goes well the output should be
0101010101010101001A
123456780


@++++ ++++                Set cell 0 to 8
[
    >@
    ++++ ++++             Set cell 1 to 64
    <-@
]
@>@+.<                    Print 'A'

>> +++++ +++++.<          Line feed
@>@>@>@>@>@>@>@<<<<<<<<@