Task: Program Execution
Input (English): 1403, 5107, a, 5457, b, 8309, 6245, 5369, v, 8319, 8367, w, k, 885, i, h, 9233, 5619, d, c, 4921, 5979, 1895, 191
Output (English): a, b, c, d, h, i, k, v, w