Task: Program Execution
Input (English): 6241 R 6801 339 Z I A 3875 r A 3419 x y v 7593 R Z 7007 B X X 1053 8529 l 8865
Output (English): 6241, 6801, 339, 3875, 3419, 7593, 7007, 1053, 8529, 8865