Task: Program Execution
Input (English): 19, 21, ['o', 'P', 'e', 'H', 'q', '8887', 's', '2871', '8691', '2179', '6513', 'C', 'Q', '3277', '5633', 'v', '2779', '5657', 'F', 'F', '577', 'E']
Output (English): FF577