Task: Program Execution
Input (English): u 6779 9513 X W W p 179 K 5203 6087 u Z S K 7911 1755 1559 9731 z N 7449 w f n 6865 9381 A 941 9997 5785 3299 9249
Output (English): 1, 4, 5, 6, 7, 9, 12, 13, 14, 15, 20, 21, 23, 24, 25, 28