25 + 4 = 20 + JXUwMDZk + 4 = 20 + JXUwMDYx = JXUwMDZhJXUwMDBi
71 + 5 = 70 + JXUwMDY5 + 5 = 70 + JXUwMDZl = JXUwMDZmJXUwMDAx
32 + 4 = 30 + JXUwMDZl = JXUwMDZiJXUwMDA1
15 + 3 = 10 + JXUwMDYw = JXUwMDY5JXUwMDA5