Task: Program Execution
Input (English): 7, 18, ['Y', '3937', '9201', 'Y', 'W', 'F', '1265', 'A', '6513', 'N', 'u', 'x', '4153', '1623', '2597', '8537', 'c', 'w', '3283', 'y', 'g', 'X', 'W', 'o', 'u', '6629', 'O']
Output (English): 1265, A, 6513, N, u, x, 4153, 1623, 2597, 8537, c, w