Task: Program Execution
Input (English): x, 1781, 9339, x, 2543, 3665, 4437, 8027, r, M, b, Q, L, y, j, 4597, 1113, Q, 4813, 5521, t, 6463
Output (English): x, x, r, M, b, Q, L, y, j, Q, t