Task: Program Execution
Input (English): 1, 3, ['6555', 'F', 'f', '951', 'V', 'B', '4157', '5087', '6223', 'k', 'j', 'b', 'W', '8289', 'n', '3075', '3441', 'P', '4425']
Output (English): 6555, 951, 4157, k, W, 3075, 4425