Task: Program Execution
Input (English): 20, 21, ['X', 'r', 't', '6275', '2515', 'U', 'M', 'I', 'z', 'b', 'c', 'E', 'J', 'd', 'o', '8589', 'd', 'P', 'X', '7199', 'H', '521']
Output (English): H, 7199