1 |
x-y |
1 |
y-z |
n |
x-z |
1 |
a |
4 |
b |
x-z |
x-y |
x-z |
y-z |
x-z |
x-y |
x-z |
y-z |
x-y+y-z |
x-y |
x-y+y-z |
y-z |
x |
2 |
a |
2 |
b |
2 |
1 |
a |
4 |
b |
1 |
8 |
1 |
a |
4 |
b |
1 |
8 |
b |
a |
4a |
b |
1 |
8 |
|
9 |
8 |
x-z |
x-y |
x-z |
y-z |
x-z |
x-y |
x-z |
y-z |
x-y+y-z |
x-y |
x-y+y-z |
y-z |
y-z |
x-y |
x-y |
y-z |
|
x-z |
x-y |
x-z |
y-z |
x |
2 |
a |
2 |
b |
2 |
1 |
a |
4 |
b |
1 |
8 |
1 |
a |
4 |
b |
1 |
8 |
b |
a |
4a |
b |
1 |
8 |
|
9 |
8 |
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