$R^3_{1}\quad U=\iota\quad D=\iota$\hfil\break
$R^3_{2}\quad U=((2 3) , \iota , \iota)\quad D=\iota$\hfil\break
$R^3_{3}\quad U=((2 3) , (1 3) , (1 2))\quad D=\iota$\hfil\break
$R^3_{4}\quad U=((1 3 2) , (1 3 2) , (1 3 2))\quad D=\iota$\hfil\break
$R^3_{5}\quad U=((1 3) , \iota , (1 3))\quad D=\iota$\hfil\break
$R^3_{6}\quad U=((1 3) , (1 3) , (1 3))\quad D=\iota$\hfil\break