$ea{r}_i$

$T_r^B$

$T_r^R$

$ea{r}_1=\left\{1-2-4-1\right\}$

$\left\{1-4-2\right\}$

$\left\{1-2-4\right\}$

$ea{r}_2=\left\{4-3-2\right\}$

$\left\{4-3\right\}$

$\left\{2-3\right\}$

$ea{r}_3=\left\{2-9-10-7-3\right\}$

$\left\{3-7-10-9\right\}$

$\left\{2-9-10-7\right\}$

$ea{r}_4=\left\{3-5-4\right\}$

$\left\{4-5\right\}$

$\left\{3-5\right\}$

$ea{r}_5=\left\{5-6-7\right\}$

$\left\{5-6\right\}$

$\left\{7-6\right\}$

$ea{r}_6=\left\{5-8-7\right\}$

$\left\{5-8\right\}$

$\left\{7-8\right\}$