Task: Program Execution
Input (English): 21, ['j', '713', 'm', 'm', '1489', '2513', '4845', '9755', 'G', 'c', '4279', 'y', 'd', '3497', 'm', '6645', 'Z', 'w', 'L', '9413', 'D', 'Y', '8557', 'D', '919', '3873', 'k', 'u', '7717', 'i', '1399', '607', 'a', '3785', '1595', 'Q', '3647', 'y', '6509', '2433', '751', '1281', 'z', '1243', 'b', 'u', 'e', '2469', 'S']
Output (English): j, Y, z