Task: Program Execution
Input (English): 8703, A, I, 4387, 9803, 6491, 2253, 5229, Q, J, 7469, R, 1147, 587, 6861, 8437, 8557, 9619, 9003, w, x, E
Output (English): 1, 4, 5, 6, 7, 8, 11, 13, 14, 15, 16, 17, 18, 19