$1-$ Eliminate all useless, unit and $\backslash$epsi $-$productions from the following grammar: S $->$ aAa $|$ bBC A $->$ B $|\backslash$epsi B $->$ b C $->$ S $|$ c $|\backslash$epsi $2-$ Eliminate all useless, unit and $\backslash$epsi $-$productions from the following grammar: S $->0$A$0|01$B A $->0$D $|1$D B $->10$A $|\backslash$epsi C $->$ A$00|0$B$0$ D $->0|\backslash$epsi