Task: Program Execution
Input (English): 1419 3739 o Z 5551 6967 Y 4787 m s 4225 9477 g y t d D 2131 117 711 i 8187 8327 9883 4537 9037
Output (English): 3, 4, 7, 9, 10, 13, 14, 15, 16, 17, 21