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ππ/π
−π/π
π/π
4
0
√π
π√π
√π
√ππ
π/ππ,−π/ππ
π/ππ,π/ππ
π/ππ,π/π
π/π,π/ππ
1,2
1,3
2,1
2,3
3
8
5
7
-2
2
1
-1