Task: Program Execution
Input (English): k N u 3921 9005 M Y J 5421 9097 5583 G 4817 y A 4431 v 3787 9769 1241 j 1469 g 4817 a V R R 2357
Output (English): 1, 2, 3, 6, 7, 8, 12, 14, 15, 17, 21, 23, 25, 26, 27, 28