Task: Program Execution
Input (English): 991, 8621, t, 8333, I, 8469, c, A, 8007, U, 7135, G, C, x, 1505, o, T, a, 3287, W, 2105, 5921
Output (English): t, I, c, A, U, G, C, x, o, T, a, W