Task: Program Execution
Input (English): e 7857 v f u 1899 F m r 3967 6351 7407 g 3515 5375 621 o 2239 m j i I r 6435 4887 5847 6375 w 6839 247 y 8993 1543 3689 Y 6383 1401
Output (English): 5, 7857, 22, 6, 21, 1899, 6, 13, 18, 3967, 6351, 7407, 7, 3515, 5375, 621, 15, 2239, 13, 10, 9, 9, 18, 6435, 4887, 5847, 6375, 23, 6839, 247, 25, 8993, 1543, 3689, 25, 6383, 1401