Task: Program Execution
Input (English): l, 6127, p, 9099, J, 7581, 4561, m, c, R, 8857, 6727, 5903, 481, L, A, 3193, 2767, 5463, R, F, 359, x, f
Output (English): 1, 3, 5, 8, 9, 10, 15, 16, 20, 21, 23, 24