Task: Program Execution
Input (English): c, 1445, 5549, u, 9615, g, 8279, t, 9109, q, 3963, d, 7525, 2893, y, 831, o, 7345, a, e, z, 3413, k, c
Output (English): a, c, d, e, g, k, o, q, t, u, y, z