Task: Program Execution
Input (English): f, 5591, z, 9031, 7871, 5767, 1919, d, m, n, 7269, 6485, j, y, 205, 9041, 4575, m, u, 5747, 9261, u, 4661, 4051
Output (English): d, f, j, m, n, u, y, z