Task: Program Execution
Input (English): 7769, Z, Y, 8687, I, 9899, 6515, f, 979, 4063, 3683, D, 6905, V, 7205, 2063, 3881, c, I, z, Q, 4107, 9479, 7497
Output (English): 7769, 8687, 9899, 6515, 979, 4063, 3683, 6905, 7205, 2063, 3881, 4107, 9479, 7497