Task: Program Execution
Input (English): 7, ['1907', 'R', 'f', '4565', 'p', 'k', '753', 'H', 'Q', '2987', 'y', 'u', '1539', '1225', '3601']
Output (English): H, Q, 2987, y, u, 1539, 1225, 3601