Task: Program Execution
Input (English): 2383, a, 2359, l, 3403, 5059, a, 6201, L, 2761, 4981, S, 8919, 3477, T, 1999, 6387, f, z, N, U, 6597
Output (English): a, l, a, L, S, T, f, z, N, U, 2383, 2359, 3403, 5059, 6201, 2761, 4981, 8919, 3477, 1999, 6387, 6597