import java.util.Arrays;
public class Main {
public static void main(String args[]) {
String s[] = {"a", "b", "c", "d"};
double d [][]= {
{0.50, 0.20, 0.20, 0.30},
{0.50, 1.10, 0.50, 0.80},
{0.50, 0.70, 0.40},
{0.50, 0.70},
{0.50},
};
System.out.println(Arrays.toString(s));
System.out.println(Arrays.deepToString(d));
}
}