Task: Program Execution
Input (English): 81, u, N, 8727, J, 3981, F, z, 7313, b, 1501, 2769, 2089, 8493, 4835, r, n, 2177, 4725, 5163, z
Output (English): 81, 8727, 3981, 7313, 1501, 2769, 2089, 8493, 4835, 2177, 4725, 5163