Task: Program Execution
Input (English): 1, 2, ['D', 'E', 'V', 'C', 'Z', 'R', 'n', '9245', 'E', '4061', '3247', '4693', 'R', '3627', '6551', '1497', '6525', 'N', 'W', '1021']
Output (English): D, E