Task: Program Execution
Input (English): 19, 20, ['Y', '1305', 'Z', 'T', 'y', 'F', 'V', '5571', 'E', 'D', '5841', '1935', '3247', 'A', '2385', 'n', '8743', '8483', '4319', 'j', 'b', 'g', '5423']
Output (English): j9134