Task: Program Execution
Input (English): q, X, J, 5731, J, 5577, 8757, w, 3759, 4123, r, g, 141, o, 2389, 6215, Q, D, 8263, 829, w, D, U
Output (English): 5731, 5577, 8757, 3759, 4123, 141, 2389, 6215, 8263, 829