day1 math 0310+0314
https://photos.google.com/share/AF1QipNnkUT7kM4R6tO6lM6f8616ZSfh8ISvxNcHPLsPYWlnnBF_f5bnxIJlu6GTiqwO5g?key=VGYwYm9KODZWQkdEcGg5ZjRjMWdsa0x3V0xZYmpn
The link address is: https://photos.google.com/share/AF1QipNnkUT7kM4R6tO6lM6f8616ZSfh8ISvxNcHPLsPYWlnnBF_f5bnxIJlu6GTiqwO5g?key=VGYwYm9KODZWQkdEcGg5ZjRjMWdsa0x3V0xZYmpn