The trouble is, the more zeroes are added, the more holes are likely to be found in the plan.
But if the string is an address or optional field, you may have megabytes of zeroes on disk.
It spots a monkey in a treetop 2.5 kilometres away and zeroes in on its prey.
However, the collation would be wrong when the number of digits changed, so leading zeroes are provided.
Moreover, the position of sidelobes and zeroes and the relative height of any sidelobes can be changed by using this method.
We don't want decimal numbers with fewer than four digits - excluding leading zeroes - so that 2992 is the first correct answer.
