//Calculate Grains on a given square on a chessboard const totalGrains = 2 ** 64 - 1; const grainsOn = (input) => { const grainCount = 2 ** (input - 1); return grainCount; }; console.log(`Grains on 6th square: ${grainsOn(6)}`); console.log(`Total grains on the Chess Board: ${totalGrains}`);