Task: Program Execution
Input (English): z, 123, 8973, 7811, M, 1149, V, o, n, z, 7723, W, 2559, O, s, M, 7713, 5403, m, 9667, o, 9909, 875
Output (English): 123, 8973, 7811, 1149, 7723, 2559, 7713, 5403, 9667, 9909, 875