Task: Program Execution
Input (English): 3177 e I 7767 g 3731 X 7645 8745 j 5073 3919 6133 8643 b 7847 L c 2773 p z 97 1157 z y a 3567 b 9671
Output (English): 1, 4, 6, 8, 9, 11, 12, 13, 14, 16, 19, 22, 23, 27, 29