Task: Program Execution
Input (English): 13, 18, ['8493', '9817', 'C', 'w', '4645', 'P', 'X', '4173', 'g', '6825', 'g', '8773', '157', 'C', 's', 'u', 'Z', 'r', '7231', '995', 'F', '4137', 'F', '4355']
Output (English): 157