Below are descriptions of two NFAs N1 and N2.
Convert them to an NFA recognizing L(N1)L(N2).

N1:

states = {a,b,c,d}
input_alphabet = {0,1}
start_state = d
accept_states = {a,b}
delta =
a,0 -> d;
a, -> b;
b,0 -> c;
b, -> b;
c,0 -> {a,c};
c, -> a;
d,0 -> {b,d};
d,1 -> d;

N2:

states = {e,f,g,h}
input_alphabet = {0,1}
start_state = e
accept_states = {f,g,h}
delta =
e,0 -> {e,f};
f,1 -> {f,g};
g,1 -> h;
g, -> e;
h,1 -> f;
h, -> f;