Task: Program Execution
Input (English): 5645 1967 6669 451 6439 5917 d 4935 9415 9921 F I H 9621 d Z Z Q 8783 8721 S 5865 x 6017 1345 D 2743 N 4121 A J
Output (English): 1, 2, 3, 4, 5, 6, 8, 9, 10, 14, 19, 20, 22, 24, 25, 27, 29