Task: Program Execution
Input (English): 3797 7689 6901 L 8575 2207 3673 5781 7213 7405 7681 K T F 1019 1419 k 39 m 5513 311 L U 3131 B u f S 6923
Output (English): 4, 12, 13, 14, 17, 19, 22, 23, 25, 26, 27, 28