Task: Program Execution
Input (English): 6, 9, ['7603', '1557', 'k', 'b', '7455', '4145', 'c', '157', 'e', '265', '1977', '8165', 'F', '2639', 'B', 'c', 'w', 'X', 'u', 'v', '3835']
Output (English): 4145c157e