Task: Program Execution
Input (English): 1243 6133 7145 4061 4919 y 2955 2707 y w P c 6387 5119 c B N 4849 7999 4571 U M S 5981 n
Output (English): y, y, w, P, c, c, B, N, U, M, S, n, 1243, 6133, 7145, 4061, 4919, 2955, 2707, 6387, 5119, 4849, 7999, 4571, 5981