Task: Program Execution
Input (English): 7, 8, ['r', '8405', '9773', '6495', 'c', 'p', '7737', '8667', '8473', 'e', 'U', 'g', 'c', '3535', '5805', '7335', 'X', 'c', '8757', '1793']
Output (English): 86677737