−1w + 4w4 + y4 – 3y4 – 2w – 3w4
A−2w4 – 2y4
B−w4y4 – 3w
Cw4 – 3w – 2y4
D12w4 + 2w – 3y4
A−2w4 – 2y4
B−w4y4 – 3w
Cw4 – 3w – 2y4
D12w4 + 2w – 3y4