Task: Program Execution
Input (English): 5835, i, y, 6559, y, E, U, 9873, 6963, f, R, O, 953, 7165, 7617, 11, 8971, t, 7301, 2121, 9701, 6641
Output (English): 5835, 6559, 9873, 6963, 953, 7165, 7617, 11, 8971, 7301, 2121, 9701, 6641