When set higher, extra elements at the end are filled with zeros.
The bits of are the original message with zeroes added at the end.
You can also pad them with zeroes, or 10101.
The second line showed a single numeral one, exactly in the middle, with zeros to the borders, left and right.
Instead of using blank numbers, all flippers began with zeros.
The result is prefixed with zeroes to make 4 digits.
Notice that is also a matrix with zeros off the diagonal.
The origin is identified with zeroes placed at the ends of these extension lines.
The tape shows the shot being waved off after it fell through the net, with zeroes on the clock.
The somewhat surprising answer is to replace the missing samples with zeros.