Input (grade 13): This makes the battle one of the most catastrophic defeats in the history of Ancient Rome, and one of the bloodiest battles in all of human history (in terms of the number of lives lost within a single day).
Output (grade 9): This makes the Battle of Cannae one of the worst defeats in the history of Ancient Rome. It is also one of the bloodiest battles in all of human history in terms of the number of lives lost within a single day.