Task: Program Execution
Input (English): 9539, F, 409, 3361, 5555, n, 701, 4061, 479, V, 3857, 4357, R, z, 3345, Z, 7629, 1017, 8573, j, 9149, h
Output (English): 1, 3, 4, 5, 7, 8, 9, 11, 12, 15, 17, 18, 19, 21