Task: Program Execution
Input (English): 4, 9, ['9477', '2041', 'x', '2065', '1145', 'A', '3825', 'b', '6145', 'N', '4443', '2147', 'l', 'c', 'v', 'v', 'I', 'x', 'n']
Output (English): 20651145A3825b6145