Task: Program Execution
Input (English): 14, 15, ['9459', 'Y', '5509', 'B', '1063', 'f', 'P', '4805', 'u', 'c', '4219', 'F', 'U', '1447', 'e', 'v', '9787', '349', 'z', 'N', 'Q']
Output (English): e7441