class MultidimensionalArray {
public static void main(String[] args) {
int[][] a = {
{1, 2, 3},
{4, 5, 6, 9},
{7},
};
System.out.println("Length of row 1: " + a[0].length);
System.out.println("Length of row 2: " + a[1].length);
System.out.println("Length of row 3: " + a[2].length);
}
}