mu 1 2 3
mu 3 2 4
mu 2 3 5
mu 2 5 6
mu 3 3 7
### 1,2,3,4,5,6,7 are x=a,y=b,xy,xyy,yxy,x1=x^y,xyxy.

mu 1 6 11
mu 6 2 12
mu 2 6 13
iv 13 14
mu 14 12 13
pwr 5 11 12
pwr 5 13 14
mu 12 14 8
### 8 = a1.

mu 6 7 11
mu 7 6 12
iv 12 13
mu 13 11 12
pwr 4 12 11
mu 7 11 9
### 9 = b1.

iv 9 11
mu 9 9 12
mu 9 12 13
mu 8 12 14
mu 14 12 15
pwr 6 14 7
mu 8 8 14
mu 14 13 16
mu 8 14 13
mu 13 11 14
mu 13 16 11
mu 11 12 13
mu 15 16 11
mu 11 14 12
mu 12 13 11
pwr 4 14 12
mu 12 7 13
iv 7 14
mu 14 13 12
pwr 10 9 13
mu 12 13 14
mu 14 11 7
### 7 = z1.

mu 1 7 11
pwr 9 11 8
### 8 = a2.

mu 7 2 11
mu 2 7 12
iv 12 13
mu 13 11 12
pwr 4 12 11
mu 2 11 9
### 9 = b2.

mu 4 4 11
mu 3 11 12
mu 12 12 13
mu 13 11 12
pwr 4 3 11
mu 11 12 1
### 1 = z.

mu 8 9 11
mu 11 9 12
pwr 18 11 3
pwr 4 9 4
mu 11 12 13
mu 11 13 14
mu 14 9 15
mu 15 14 16
mu 16 11 13
iv 13 14
mu 14 8 15
mu 15 13 11
pwr 5 12 13
mu 12 13 14
iv 13 12
mu 12 4 15
mu 15 13 16
iv 14 13
mu 13 4 15
mu 15 14 12
mu 4 16 15
mu 15 12 14
mu 14 11 13
mu 3 13 7
### 7 = y1.

mu 7 2 11
mu 2 7 12
iv 12 13
mu 13 11 12
pwr 14 12 8
### 8 = a3.

mu 7 5 11
mu 5 7 12
iv 12 13
mu 13 11 12
pwr 10 12 11
mu 5 11 9
### 9 = b3.

mu 9 9 7
mu 7 7 4
mu 9 8 11
mu 9 11 12
mu 9 12 13
mu 8 11 14
mu 14 7 5
mu 8 4 14
pwr 4 14 3
mu 12 13 14
mu 14 12 13
mu 11 12 14
mu 12 11 15
mu 12 15 16
mu 16 13 15
mu 14 13 12
mu 15 12 11
mu 5 5 14
iv 14 15
mu 15 4 16
mu 16 14 7
mu 14 14 15
iv 15 14
mu 14 4 16
mu 16 15 12
mu 5 15 14
iv 14 15
mu 15 4 16
mu 16 14 13

mu 6 3 5
mu 5 7 6
mu 6 12 5
mu 5 13 6
mu 6 11 2
### Answer in 1 and 2 (as usual).