User blog comment:SuperJedi224/A Programming Challenge/@comment-5529393-20150325003513/@comment-5529393-20150325034651

Hmm, I don't think that works.

[-<++++++++++>] converts n in the second cell into 10n in the first cell.

[<[-<++++++++++>]++++++++++>-] converts n in the third cell into 10n in the second cell, which converts to 100n in the first cell.

After the beginning, we have 10,10,10. The first big loop converts this into 1010, 10, 0. The second loop converts this into 0, 10, 1010. The third big loop converts this into 101000, 10, 0. So I think the final number is 101000.