Task: Program Execution
Input (English): 1, 9, ['E', '51', '4791', '6165', 'g', 'Q', '5425', '8325', 'C', 'W', '6609', 'p', 'C', '2147', '7771', 'v', '7067', 'a', 'i', 'k', 'x', 'L', 'A']
Output (English): E, W, i