Task: Program Execution
Input (English): 1973, W, 135, R, 8389, 5745, 8921, 9677, 3305, x, 7241, l, n, 4211, 2751, T, D, i, l, K
Output (English): W, R, x, l, n, T, D, i, l, K, 1973, 135, 8389, 5745, 8921, 9677, 3305, 7241, 4211, 2751