Task: Program Execution
Input (English): 7855, a, 2899, Y, v, 6427, q, m, W, C, N, E, i, 1591, 9533, 4983, K, n, P, 5761, 713, P
Output (English): 7855, 2899, 6427, 1591, 9533, 4983, 5761, 713