Task: Program Execution
Input (English): 1943, 3803, r, 4155, I, c, 1847, 1851, Q, B, 5715, p, i, 2409, x, u, 25, Z, c, 1545, 8221, F, k
Output (English): 1943, 3803, 4155, 1847, 1851, 5715, 2409, 25, 1545, 8221