100 = 30 + 40 + 30 = 20 + 40 + 40 = 30 + 20 + 20 + 30 = 40 + 20 + 40 = 30 + 30 + 20 + 20 = 40 + 30 + 30.
100 = 30 + 40 + 30 = 20 + 40 + 40 = 30 + 20 + 20 + 30 = 40 + 20 + 40 = 30 + 30 + 20 + 20 = 40 + 30 + 30.