Task: Program Execution
Input (English): 1783 8889 u 4631 6253 U z J 4151 4743 2047 x S k t 5087 1945 121 4841 B 7557 w 7785 V z 9223 9907 1847
Output (English): u, U, z, J, x, S, k, t, B, w, V, z