Task: Program Execution
Input (English): Y O B e N p 8903 k X 6257 e k 4783 f 7971 9255 209 5639 N 1917 8621 773 h L 6753 q 4775 7617 B
Output (English): 1, 2, 3, 4, 5, 6, 8, 9, 11, 12, 14, 19, 23, 24, 26, 29