Task: Program Execution
Input (English): 7711, x, x, t, E, 413, 3357, k, 3155, 3907, i, 963, R, i, 6635, 4347, E, 5159, R, 9463, D, 7823, k, t
Output (English): 2, 3, 4, 5, 8, 11, 13, 14, 17, 19, 21, 23, 24