Task: Program Execution
Input (English): C, u, 9273, v, B, 7059, k, 799, 9219, Y, 961, 4413, r, 2839, 7893, 8815, n, U, x, L, Y, c
Output (English): C, u, v, B, k, Y, r, n, U, x, L, Y, c, 9273, 7059, 799, 9219, 961, 4413, 2839, 7893, 8815