Task: Program Execution
Input (English): 4277, 4335, J, 4409, g, 7897, g, 567, R, F, 9233, J, 583, 27, l, 7533, 7737, u, 1999
Output (English): 1, 2, 4, 6, 8, 11, 13, 14, 16, 17, 19