Task: Program Execution
Input (English): 1823, 8599, U, 7489, x, J, N, 465, L, 9575, 8333, u, M, c, 2945, 5651, f, i, 2825, f, D, Y, Z, m
Output (English): U, x, J, N, L, u, M, c, f, i, f, D, Y, Z, m