Условие:

7 + 75
4 + 93
4840 + 6
5650 + 7
34430
87780

7 + 75 = 145 = 9
4 + 93 = 133 = 10
4840 + 6 = 8 + 6 = 14
5650 + 7 = 6 + 7 = 13
34430 = 3030 = 0
87780 = 8080 = 0