Task: Program Execution
Input (English): 5, ['3713', '2043', '4265', '6357', '8973', '7923', 'H', '55', '6433', '9097', 'L', '4389', '4215', '7871', 'z', 'f', '4001', 'D', '5129', 'K', 'h']
Output (English): 3713, 7923, L, f, h