Task: Program Execution
Input (English): 5523, 6421, H, v, 1687, 8471, I, 2419, 5065, 921, X, 6435, 5521, 1345, 297, B, m, K, i, 553, 823, 4373, 4843
Output (English): H, v, I, X, B, m, K, i, 5523, 6421, 1687, 8471, 2419, 5065, 921, 6435, 5521, 1345, 297, 553, 823, 4373, 4843