1 + 4 = 5
8 + 8 = 16
5 x 16 = 80
75 + 80 = 155
155 x 8 = 1240

8 + 75 = 83
8 - 1 = 7
83 - 8 = 75
75 - 4 = 71
7 + 71 = 78

4 + 8 = 12
12 - 8 = 4
1 + 4 = 5
5 x 75 = 375
8 + 375 = 383