Task: Program Execution
Input (English): 2661 T 8815 9647 e 3451 A z q O H f W M L 4143 2641 6479 K s 6161 x F n r t A w 1649 9829 1381 J
Output (English): 1, 3, 4, 6, 16, 17, 18, 21, 29, 30, 31