Task: Program Execution
Input (English): 2, 3, ['2315', 'b', 'h', 'n', 'H', 'P', '7741', '171', '8417', 'b', '797', 'l', '5599', '567', '5825', '515', '4193', '731', '2401', '5965', 'd', 'u', '1241', '8059']
Output (English): hb