Task: Program Execution
Input (English): i, 5999, B, 9689, 7199, q, 9853, 5177, r, 5641, 3343, 3433, u, 3953, e, u, 2519, 4241, 9807, N, 5177
Output (English): 5999, 9689, 7199, 9853, 5177, 5641, 3343, 3433, 3953, 2519, 4241, 9807, 5177