🔢 01 - 09: Numbers exercises

🔤 10 - 19: String exercises

💾 20 - 29: Array exercises

🤖 30 - 39: Object exercises

⚙️ 40 - 49: Function exercises

📕 50 - 59: Combined exercises → entry

📗 60 - 69: Combined exercises → medium

📘 70 - 79: Combined exercises → advanced

⏱️ 80 - 89: Timing exercises

⌛ 90 - 99: API exercises