Question: I'm looking for help on just L2 Define a nondeterministic pushdown automaton for the following languages: L1 = {w(w cap R): w epsilon {a, b}

I'm looking for help on just L2

Define a nondeterministic pushdown automaton for the following languages: L1 = {w(w cap R): w epsilon {a, b} cap *} L2 = {(a cap n) (b cap n): n > = 0} Where w is a string, w cap R is the reverse of that string, and w can be any combination of zero or more a's and b's

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