Please don't tag me for such nonsense. It's just Qiskit 101, i.e. how to implement quantum search algorithm in Qiskit.
Here's conceptually similar way to crack PIN in your phone:

#!/bin/bash
for h in {0..9}
do
  for i in {0..9}
  do
    for v in {0..9}
    do
      for e in {0..9}
      do
        echo "$h$i$v$e"
      done
    done
  done
done

Call FBI, MTV and CNN.