Task: Program Execution
Input (English): 11, ['7667', '2129', '6995', 'a', 'D', 'd', '9661', 'b', '5525', '7991', '6995', 'I', 'X', 'x', '4365', '4375', '5803', '2983', 'R', '4677', 'N', '2257', '5611', '1643', '103', '9713', '2831', 'U', 'H', '8453', '323', '5593', '7475', '6341', '1091', '2849', '2163']
Output (English): 7667, I, 5611, 6341