Task: Program Execution
Input (English): 4, ['r', 'S', '8673', '3387', 'R', 'D', '1957', 'b', '9833', '8947', '1061', 'M', 'K', '5679', 'c', 'b', 'o', '9187', 'd', '4881', 'Z', 'y', 'X']
Output (English): r, R, 9833, K, o, Z