Task: Program Execution
Input (English): 13, 19, ['a', '577', '1483', '3061', '9575', '9339', 'R', 'F', 'k', '1119', '4369', 'r', '9073', '8419', 'x', 'Q', '9263', 'c', '5405', '9791', 'W', 'C', 'x', 'M', '2015']
Output (English): 90738419xQ9263c5405