Task: Program Execution
Input (English): a 6511 G j 8617 7049 3731 B r W 1825 8617 W 7875 n X 8707 z Y 1645 v 1763 W S 8683 X 1931 6251 8601 8049 7883 H X A 4793 y b y 7671
Output (English): 1, 3, 4, 8, 9, 10, 13, 15, 16, 18, 19, 21, 23, 24, 26, 32, 33, 34, 36, 37, 38