Task: Program Execution
Input (English): 7817 N 6991 f V 6819 811 X 7457 u 5523 K M 6753 6265 D 8895 H 8917 j 7555 9133 1259 r l 667
Output (English): N, f, V, X, u, K, M, D, H, j, r, l, 7817, 6991, 6819, 811, 7457, 5523, 6753, 6265, 8895, 8917, 7555, 9133, 1259, 667