β→γ→α\beta \rightarrow \gamma \rightarrow \alphaβ→γ→α
α→γ→β\alpha \rightarrow \gamma \rightarrow \betaα→γ→β
γ→α→β\gamma \rightarrow \alpha \rightarrow \betaγ→α→β
γ→β→α\gamma \rightarrow \beta \rightarrow \alphaγ→β→α
α→β→γ\alpha \rightarrow \beta \rightarrow \gammaα→β→γ
