Task: Program Execution
Input (English): 4737, 1271, 7289, F, c, 2089, 7979, 9531, 7511, 2391, 5943, 3567, 9573, q, U, e, 5277, l, 5899, 2127
Output (English): 4, 5, 14, 15, 16, 18