Task: Program Execution
Input (English): 7, 9, ['b', 'z', '4373', 'G', '3677', '2071', '6633', '5615', 'S', '6257', 't', 'a', '1255', '6433', 'y', 'X', '8403', 'H', '8375', '4217', '3221', 'i']
Output (English): S56156633