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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def ripple_carry_add(A, B, cin=0):
 """Return symbolic logic for an N-bit ripple carry adder."""

    if len(A) != len(B):
        raise ValueError("expected A and B to be equal length")
    ss, cs = list(), list()
    for i, a in enumerate(A):
        c = (cin if i == 0 else cs[i-1])
        ss.append(a ^ B[i] ^ c)
        cs.append(a & B[i] | a & c | B[i] & c)
    return farray(ss), farray(cs)