Task: Program Execution
Input (English): x, k, 8449, 2431, 6835, 7497, 4803, V, 3339, 2089, 5253, Z, 8623, 4411, B, z, J, i, e, n, B, 457
Output (English): x, k, V, Z, B, z, J, i, e, n, B