Task: Program Execution
Input (English): 6801, 1449, k, 6417, a, V, e, D, R, g, x, V, g, O, 1535, 2381, z, 1843, S, D, 5819, I, A
Output (English): 6801, 1449, 6417, 1535, 2381, 1843, 5819