Task: Program Execution
Input (English): 2251, o, x, 4531, 9119, E, b, C, 821, r, q, V, a, X, 4037, m, c, 3843, 2943, 9851, 6527, 6947, 7819, B
Output (English): o, x, E, b, C, r, q, V, a, X, m, c, B