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

['D', 'B', 6407, 'L', 'P', 'B', '4529', 'r', 's', 7599, 373], ['f', 'E', 'L', 'P', 'B', '4529', 't', 3723]
L, P, B, 4529

[6211, 8013, 7837, 3385, 'z', 7301, 'D', 'Y', 'Q', 'Y', 'W', '473', '9037', 'K', 'V', '7669', 'R', '6605', 'I', 'k', 5831], ['A', 'N', 'I', 4579, 'R', 'P', 4559, 3977, 'Y', 'W', '473', '9037', 'K', 'V', '7669', 'R', '6605', 'D', 7909, 'x']
Y, W, 473, 9037, K, V, 7669, R, 6605

[1961, 2477, 'k', 9375, 'U', 4673, 9559, '6259', 't', 'Y', '6995', 'X', '1081', '8655', 'D', '8685', 'd', '7469', 'j', 'W', 'G', 'l', '5713', '5351', '1221', 'C', '3859', 'T', 'D', 1985, 'U', 2961, 9525, 'n', 8891, 1925, 5347], ['Y', 'a', 383, 'o', 2977, 2017, 9051, 945, 7571, 5937, 'l', 9315, 'i', 'z', 159, 'i', '6259', 't', 'Y', '6995', 'X', '1081', '8655', 'D', '8685', 'd', '7469', 'j', 'W', 'G', 'l', '5713', '5351', '1221', 'C', '3859', 'f', 2187, 'J', 5977, 'V', 6119, 't']

6259, t, Y, 6995, X, 1081, 8655, D, 8685, d, 7469, j, W, G, l, 5713, 5351, 1221, C, 3859