Task: Program Execution
Input (English): 1, 7, ['8383', '7681', 'y', '3045', '7953', '815', 'X', 'C', 'G', '4989', 'Q', '7443', 'P', 'y', '1739', '6837', '25', '5343', 'c']
Output (English): 8383, C, 1739