Task: Program Execution
Input (English): 2297, 2503, 1119, 7883, y, b, 6895, 7535, F, I, Y, 2719, 2569, D, 3415, F, 2479, 5639, X, a, 5793, a, U, 6735
Output (English): y, b, F, I, Y, D, F, X, a, a, U