Task: Program Execution
Input (English): 2747, 6117, j, 2763, 9195, x, r, e, 4037, f, 9485, z, 4381, e, j, 7015, a, 8743, u, 7677, h, 1629, 6191
Output (English): a, e, f, h, j, r, u, x, z