Task: Program Execution
Input (English): 6, ['9639', '9239', 'X', '1787', 'N', 'j', 'p', 'A', '4139', '9523', 'r', 'w', 'w', 'd', 'q', '1909', 'u', '7913', '2213', '5043', '7543', '6607', 'a']
Output (English): 9639, 9239, X, 1787, N, j