Task: Program Execution
Input (English): 665 9421 7957 l 6387 f m f C S a 4527 7319 3913 6563 E u 3129 f t 4229 8259 H 4955 h Z 563 5615 j w L 9053 9613
Output (English): 4, 6, 7, 8, 9, 10, 11, 16, 17, 19, 20, 23, 25, 26, 29, 30, 31