answer all of them please.

Write CFG to the following language: a) L={an+1bnbmam:m,n0} b) L={ambncn:m,n0} 3) Construct PDA for the Following Languages: a) L={ambn:nm2n} b) L={a2nb3n:n0} c) L={anbbcn:n0} d) L={w{0,1}w=wR and length of w is odd }