using System;
class Program
{
static void Display(int[][] arr) {
for (int i = 0; i < arr.Length; i++) {
for (int j = 0; j < arr[i].Length; j++) {
Console.Write($"{arr[i][j]}\t");
}
Console.Write("\n");
}
}
static void Main() {
int[][] arr = new int[2][];
arr[0] = new int[]{4, 9, 7, 8};
arr[1] = new int[3];
arr[1][0] = 9;
arr[1][1] = 1;
arr[1][2] = 5;
Display(arr);
}
}
/*
run:
4 9 7 8
9 1 5
*/