Thank you for sharing your vibrant memories of school life. Your enthusiasm for math and the camaraderie with your friend Mahfuz bring the past to life. It's heartening to hear about the supportive and encouraging nature of your math teacher, Afzal sir. The story of your impromptu trip to Sundarbans and the school picnic to Swapnapur adds a delightful touch to your narrative. School farewells are undoubtedly poignant, and your reflection captures the bittersweet emotions associated with those days. May these cherished memories continue to bring warmth to your heart!