Task: Program Execution
Input (English): B, k, 3863, 5721, 3941, U, a, j, 4903, 1333, 3801, E, l, 2837, s, 5495, o, 181, 5401, 9463
Output (English): B, k, U, a, j, E, l, s, o, 3863, 5721, 3941, 4903, 1333, 3801, 2837, 5495, 181, 5401, 9463