Task: Program Execution
Input (English): 3, 12, ['4579', 'x', 'Z', '9817', 'X', 'z', 'j', 'v', 'R', 'Y', '6731', 'w', 'm', 'E', '6345', 'n', 'u', '9873', '6337', '9571', '4081', '9941']
Output (English): Z9817XzjvRY6731w