Task: Program Execution
Input (English): 173, 1013, 191, f, 677, 4493, 6589, k, 5229, F, 7685, 4911, c, c, 9095, 1655, 8355, b, 8465, 7899
Output (English): f, k, F, c, c, b, 173, 1013, 191, 677, 4493, 6589, 5229, 7685, 4911, 9095, 1655, 8355, 8465, 7899