Luminous Grade Course 2023 (β) ln10 7 0000000000200000000000000000a737a1dff119fed6cea81b632aeca644fbf2c1d4a4c12b3706fbf9129ce6cc7acf094d5dfccef185c0897c79098cebba4fe21f8acb255621fd820617a7ede837fbca 2