$BR^4_{1}\quad U=(\iota , \iota , (3 4) , (3 4))\quad D=(\iota , (3 4) , \iota , \iota)$\hfil\break $BR^4_{2}\quad U=(\iota , \iota , (3 4) , (3 4))\quad D=((3 4) , (3 4) , \iota , \iota)$\hfil\break $BR^4_{3}\quad U=(\iota , \iota , (1 2) , (1 2))\quad D=(\iota , \iota , (3 4) , (3 4))$\hfil\break $BR^4_{4}\quad U=(\iota , \iota , (1 2) , (1 2))\quad D=((3 4) , (3 4) , (3 4) , (3 4))$\hfil\break $BR^4_{5}\quad U=(\iota , \iota , (1 2)(3 4) , (1 2)(3 4))\quad D=((3 4) , (3 4) , \iota , \iota)$\hfil\break $BR^4_{6}\quad U=(\iota , (3 4) , \iota , \iota)\quad D=(\iota , (3 4) , (3 4) , (3 4))$\hfil\break $BR^4_{7}\quad U=(\iota , (3 4) , \iota , \iota)\quad D=((3 4) , \iota , (3 4) , (3 4))$\hfil\break $BR^4_{8}\quad U=(\iota , (3 4) , \iota , \iota)\quad D=((3 4) , (3 4) , (3 4) , (3 4))$\hfil\break $BR^4_{9}\quad U=(\iota , (3 4) , (3 4) , (3 4))\quad D=((3 4) , (3 4) , \iota , \iota)$\hfil\break $BR^4_{10}\quad U=(\iota , (2 3 4) , (2 3 4) , (2 3 4))\quad D=(\iota , (2 4 3) , (2 4 3) , (2 4 3))$\hfil\break $BR^4_{11}\quad U=(\iota , (2 3 4) , (2 3 4) , (2 3 4))\quad D=((2 4 3) , \iota , \iota , \iota)$\hfil\break $BR^4_{12}\quad U=(\iota , (2 3 4) , (2 3 4) , (2 3 4))\quad D=((2 4 3) , (2 4 3) , (2 4 3) , (2 4 3))$\hfil\break $BR^4_{13}\quad U=(\iota , (2 4 3) , (2 4 3) , (2 4 3))\quad D=((2 4 3) , \iota , \iota , \iota)$\hfil\break $BR^4_{14}\quad U=(\iota , (2 4 3) , (2 4 3) , (2 4 3))\quad D=((2 4 3) , (2 3 4) , (2 3 4) , (2 3 4))$\hfil\break $BR^4_{15}\quad U=(\iota , \iota , (3 4) , (3 4))\quad D=((3 4) , (3 4) , (1 2) , (1 2))$\hfil\break $BR^4_{16}\quad U=(\iota , \iota , (1 2) , (1 2))\quad D=(\iota , \iota , (1 2)(3 4) , (1 2)(3 4))$\hfil\break $BR^4_{17}\quad U=(\iota , \iota , (1 2) , (1 2))\quad D=((3 4) , (3 4) , (1 2)(3 4) , (1 2)(3 4))$\hfil\break $BR^4_{18}\quad U=(\iota , \iota , (1 2)(3 4) , (1 2)(3 4))\quad D=((3 4) , (3 4) , (1 2) , (1 2))$\hfil\break $BR^4_{19}\quad U=((3 4) , (3 4) , \iota , \iota)\quad D=((3 4) , (3 4) , (3 4) , (3 4))$\hfil\break $BR^4_{20}\quad U=((3 4) , (3 4) , (1 2) , (1 2))\quad D=((3 4) , (3 4) , (3 4) , (3 4))$\hfil\break $BR^4_{21}\quad U=((3 4) , (3 4) , (1 2)(3 4) , (1 2)(3 4))\quad D=((3 4) , (3 4) , \iota , \iota)$\hfil\break $BR^4_{22}\quad U=((3 4) , (3 4) , (1 2) , (1 2))\quad D=((3 4) , (3 4) , (1 2)(3 4) , (1 2)(3 4))$\hfil\break $BR^4_{23}\quad U=((2 3 4) , \iota , \iota , \iota)\quad D=((2 4 3) , (2 4 3) , (2 4 3) , (2 4 3))$\hfil\break $BR^4_{24}\quad U=((2 3 4) , \iota , \iota , \iota)\quad D=((2 4 3) , (2 3 4) , (2 3 4) , (2 3 4))$\hfil\break $BR^4_{25}\quad U=((2 3 4) , (2 3 4) , (2 3 4) , (2 3 4))\quad D=((2 4 3) , (2 4 3) , (2 4 3) , (2 4 3))$\hfil\break $BR^4_{26}\quad U=((2 3 4) , (2 4 3) , (2 4 3) , (2 4 3))\quad D=((2 4 3) , (2 3 4) , (2 3 4) , (2 3 4))$\hfil\break $BR^4_{27}\quad U=((2 3 4) , \iota , \iota , \iota)\quad D=((2 3 4) , (2 4 3) , (2 4 3) , (2 4 3))$\hfil\break $BR^4_{28}\quad U=((2 3 4) , \iota , \iota , \iota)\quad D=((2 3 4) , (2 3 4) , (2 3 4) , (2 3 4))$\hfil\break $BR^4_{29}\quad U=((2 3 4) , (2 3 4) , (2 3 4) , (2 3 4))\quad D=((2 3 4) , (2 4 3) , (2 4 3) , (2 4 3))$\hfil\break $BR^4_{30}\quad U=(\iota , \iota , (3 4) , (3 4))\quad D=((1 2) , (1 2) , \iota , \iota)$\hfil\break $BR^4_{31}\quad U=(\iota , \iota , (3 4) , (3 4))\quad D=((1 2) , (1 2) , (3 4) , (3 4))$\hfil\break $BR^4_{32}\quad U=(\iota , \iota , (3 4) , (3 4))\quad D=((1 2)(3 4) , (1 2)(3 4) , \iota , \iota)$\hfil\break $BR^4_{33}\quad U=(\iota , \iota , (3 4) , (3 4))\quad D=((1 2)(3 4) , (1 2)(3 4) , (3 4) , (3 4))$\hfil\break $BR^4_{34}\quad U=(\iota , \iota , (1 2) , (1 2))\quad D=((1 2) , (1 2) , (3 4) , (3 4))$\hfil\break $BR^4_{35}\quad U=(\iota , \iota , (1 2)(3 4) , (1 2)(3 4))\quad D=((1 2) , (1 2) , (3 4) , (3 4))$\hfil\break $BR^4_{36}\quad U=(\iota , \iota , (1 2) , (1 2))\quad D=((1 2)(3 4) , (1 2)(3 4) , (3 4) , (3 4))$\hfil\break $BR^4_{37}\quad U=(\iota , \iota , (1 2)(3 4) , (1 2)(3 4))\quad D=((1 2)(3 4) , (1 2)(3 4) , \iota , \iota)$\hfil\break $BR^4_{38}\quad U=(\iota , \iota , (1 2)(3 4) , (1 2)(3 4))\quad D=((1 2)(3 4) , (1 2)(3 4) , (3 4) , (3 4))$\hfil\break $BR^4_{39}\quad U=(\iota , \iota , (3 4) , (1 2)(3 4))\quad D=((1 2) , (1 2) , (3 4) , (1 2)(3 4))$\hfil\break $BR^4_{40}\quad U=(\iota , \iota , (1 2)(3 4) , (3 4))\quad D=((1 2) , (1 2) , (3 4) , (1 2)(3 4))$\hfil\break $BR^4_{41}\quad U=(\iota , \iota , (3 4) , (3 4))\quad D=((1 2) , (1 2) , (1 2) , (1 2))$\hfil\break $BR^4_{42}\quad U=(\iota , \iota , (3 4) , (3 4))\quad D=((1 2) , (1 2) , (1 2)(3 4) , (1 2)(3 4))$\hfil\break $BR^4_{43}\quad U=(\iota , \iota , (3 4) , (3 4))\quad D=((1 2)(3 4) , (1 2)(3 4) , (1 2) , (1 2))$\hfil\break $BR^4_{44}\quad U=(\iota , \iota , (3 4) , (3 4))\quad D=((1 2)(3 4) , (1 2)(3 4) , (1 2)(3 4) , (1 2)(3 4))$\hfil\break $BR^4_{45}\quad U=(\iota , \iota , (1 2) , (1 2))\quad D=((1 2) , (1 2) , (1 2)(3 4) , (1 2)(3 4))$\hfil\break $BR^4_{46}\quad U=(\iota , \iota , (1 2)(3 4) , (1 2)(3 4))\quad D=((1 2) , (1 2) , (1 2) , (1 2))$\hfil\break $BR^4_{47}\quad U=(\iota , \iota , (1 2)(3 4) , (1 2)(3 4))\quad D=((1 2) , (1 2) , (1 2)(3 4) , (1 2)(3 4))$\hfil\break $BR^4_{48}\quad U=(\iota , \iota , (1 2) , (1 2))\quad D=((1 2)(3 4) , (1 2)(3 4) , (1 2)(3 4) , (1 2)(3 4))$\hfil\break $BR^4_{49}\quad U=(\iota , \iota , (1 2)(3 4) , (1 2)(3 4))\quad D=((1 2)(3 4) , (1 2)(3 4) , (1 2) , (1 2))$\hfil\break $BR^4_{50}\quad U=(\iota , \iota , (1 2)(3 4) , (1 2)(3 4))\quad D=((1 2)(3 4) , (1 2)(3 4) , (1 2)(3 4) , (1 2)(3 4))$\hfil\break $BR^4_{51}\quad U=((3 4) , (3 4) , (3 4) , (3 4))\quad D=((1 2) , (1 2) , (3 4) , (3 4))$\hfil\break $BR^4_{52}\quad U=((3 4) , (3 4) , (3 4) , (3 4))\quad D=((1 2)(3 4) , (1 2)(3 4) , (3 4) , (3 4))$\hfil\break $BR^4_{53}\quad U=((3 4) , (3 4) , (1 2) , (1 2))\quad D=((1 2) , (1 2) , (3 4) , (3 4))$\hfil\break $BR^4_{54}\quad U=((3 4) , (3 4) , (1 2)(3 4) , (1 2)(3 4))\quad D=((1 2) , (1 2) , (3 4) , (3 4))$\hfil\break $BR^4_{55}\quad U=((3 4) , (3 4) , (1 2) , (1 2))\quad D=((1 2)(3 4) , (1 2)(3 4) , (3 4) , (3 4))$\hfil\break $BR^4_{56}\quad U=((3 4) , (3 4) , (1 2)(3 4) , (1 2)(3 4))\quad D=((1 2)(3 4) , (1 2)(3 4) , (3 4) , (3 4))$\hfil\break $BR^4_{57}\quad U=((3 4) , (3 4) , (3 4) , (3 4))\quad D=((1 2) , (1 2) , (1 2) , (1 2))$\hfil\break $BR^4_{58}\quad U=((3 4) , (3 4) , (3 4) , (3 4))\quad D=((1 2) , (1 2) , (1 2)(3 4) , (1 2)(3 4))$\hfil\break $BR^4_{59}\quad U=((3 4) , (3 4) , (3 4) , (3 4))\quad D=((1 2)(3 4) , (1 2)(3 4) , (1 2) , (1 2))$\hfil\break $BR^4_{60}\quad U=((3 4) , (3 4) , (3 4) , (3 4))\quad D=((1 2)(3 4) , (1 2)(3 4) , (1 2)(3 4) , (1 2)(3 4))$\hfil\break $BR^4_{61}\quad U=((3 4) , (3 4) , (1 2)(3 4) , (1 2)(3 4))\quad D=((1 2) , (1 2) , (1 2)(3 4) , (1 2)(3 4))$\hfil\break $BR^4_{62}\quad U=((3 4) , (3 4) , (1 2) , (1 2))\quad D=((1 2)(3 4) , (1 2)(3 4) , (1 2)(3 4) , (1 2)(3 4))$\hfil\break $BR^4_{63}\quad U=((3 4) , (3 4) , (1 2)(3 4) , (1 2)(3 4))\quad D=((1 2)(3 4) , (1 2)(3 4) , (1 2) , (1 2))$\hfil\break $BR^4_{64}\quad U=((3 4) , (3 4) , (1 2)(3 4) , (1 2)(3 4))\quad D=((1 2)(3 4) , (1 2)(3 4) , (1 2)(3 4) , (1 2)(3 4))$\hfil\break $BR^4_{65}\quad U=((1 2)(3 4) , (1 2)(3 4) , (1 2)(3 4) , (1 2)(3 4))\quad D=((1 3 4 2) , (1 2 4 3) , (1 2 4 3) , (1 3 4 2))$\hfil\break $BR^4_{66}\quad U=((1 3)(2 4) , (1 2)(3 4) , (1 2)(3 4) , (1 3)(2 4))\quad D=((1 2)(3 4) , (1 3)(2 4) , (1 3)(2 4) , (1 2)(3 4))$\hfil\break $BR^4_{67}\quad U=((1 2 3 4) , (1 2 3 4) , (1 2 3 4) , (1 2 3 4))\quad D=((1 4 3 2) , (1 4 3 2) , (1 4 3 2) , (1 4 3 2))$\hfil\break $BR^4_{68}\quad U=((1 2)(3 4) , (1 2)(3 4) , (1 2)(3 4) , (1 2)(3 4))\quad D=((1 3)(2 4) , (1 3)(2 4) , (1 3)(2 4) , (1 3)(2 4))$\hfil\break $BR^4_{69}\quad U=((1 2)(3 4) , (1 2)(3 4) , (1 2)(3 4) , (1 2)(3 4))\quad D=((1 4 2 3) , (1 4 2 3) , (1 4 2 3) , (1 4 2 3))$\hfil\break $BR^4_{70}\quad U=((1 3)(2 4) , (1 2)(3 4) , (1 2)(3 4) , (1 3)(2 4))\quad D=((1 2 4 3) , (1 2 4 3) , (1 2 4 3) , (1 2 4 3))$\hfil\break $BR^4_{71}\quad U=((1 3 4 2) , (1 2 4 3) , (1 2 4 3) , (1 3 4 2))\quad D=((1 2 4 3) , (1 3 4 2) , (1 3 4 2) , (1 2 4 3))$\hfil\break