При b=70:b+20 = 70+20 = 9014+b = 14+70 = 8480-b = 80-70 = 10b-9 = 70-9 = 61
При b=23:b+20 = 23+20 = 4314+b = 14+23 = 3780-b = 80-23 = 57b-9 = 23-9 = 14
При b=11:b+20 = 11+20 = 3114+b = 14+11 = 2580-b = 80-11 = 69b-9 = 11-9 = 2
При b=70:
b+20 = 70+20 = 90
14+b = 14+70 = 84
80-b = 80-70 = 10
b-9 = 70-9 = 61
При b=23:
b+20 = 23+20 = 43
14+b = 14+23 = 37
80-b = 80-23 = 57
b-9 = 23-9 = 14
При b=11:
b+20 = 11+20 = 31
14+b = 14+11 = 25
80-b = 80-11 = 69
b-9 = 11-9 = 2