In this task, you are given two lists A,B. Find the longest common subsequence in the lists A and B.

[6921, 9035, 1815, 'T', 7393, 6607, 'D', 'c', 293, 'U', 4409, 4737, 3515, 'I', 'a', '839', 'q', 'n', '2571', '5999', 'L', 'k', '9745', '9023', '7365', 'C', '2893', 'n', '7783', 'E', '5071', 'Z', '3647', 'f', '7281', '8791', 'U', 't', '3969', '2029', 'i', 'o', 'a', 'M', 7035, 'v', 4907, 'l', 9767, 9189, 6353, 2883, 'F', 'x', 7665, 6801, 'x', 'J', 'G', 5361, 'f', 'Y', 'u', 'K', 'c', 1779, 1115], [587, 779, 525, 'i', 's', 4247, 5713, 'I', 'a', '839', 'q', 'n', '2571', '5999', 'L', 'k', '9745', '9023', '7365', 'C', '2893', 'n', '7783', 'E', '5071', 'Z', '3647', 'f', '7281', '8791', 'U', 't', '3969', '2029', 'i', 'u', 4957, 'c', 'k', 5231, 'i', 'T', 'q', 'd']
I, a, 839, q, n, 2571, 5999, L, k, 9745, 9023, 7365, C, 2893, n, 7783, E, 5071, Z, 3647, f, 7281, 8791, U, t, 3969, 2029, i

[7319, 'V', 'f', 't', 'M', 'L'], [4655, 3353, 'f', 't', 'G', 1263]
f, t

[879, 'S', 4735, 6487, 'X', '7883', '7419', 'C', 'q', '2487', 'Y', 'Q', 'o', 'N', 'e', '8083', 'u', '5205', 'Q', 'x', '8687', 'u', 'v', '9759', '4455', 'Z', 7209, 'f', 'N', 9583, 6957, 3633, 2837, 's', 'Q', 3849, 'q', 9049, 4817, 'i', 6443], ['o', 2187, 'q', 'D', 'j', 'd', 'i', 'V', 8031, 5527, 'w', 'B', 'z', 'N', 7331, 'k', 'I', 4155, 'v', 1119, 'X', '7883', '7419', 'C', 'q', '2487', 'Y', 'Q', 'o', 'N', 'e', '8083', 'u', '5205', 'Q', 'x', '8687', 'u', 'v', '9759', '4455', 'U', 'F', 5223, 'y', 'S', 'C', 3781, 2655, 871, 'z', 5179, 'u', 'L', 4695, 'h', 709, 'p', 5443, 'b', 4067]

X, 7883, 7419, C, q, 2487, Y, Q, o, N, e, 8083, u, 5205, Q, x, 8687, u, v, 9759, 4455