Task: Program Execution
Input (English): 8015 5075 2921 C 4811 4407 U 7349 w 7583 2041 f 2639 7235 j p 9661 p 1461 6285 8415 x 1963 9581 o j 5375 R
Output (English): 4, 7, 9, 12, 15, 16, 18, 22, 25, 26, 28