using System;
namespace ConsoleApp15
{
internal class Program
{
static void Main(string[] args)
{
int a = int.Parse(Console.ReadLine());
int b = int.Parse(Console.ReadLine());
int[,] vs = new int[a, b];
for (int i = 0; i < vs.GetLength(0); i++)
{
for (int j = 0; j < vs.GetLength(1); j++)
{
if(i == j )
{
vs[i, j] = 1;
}
else
{
vs[i, j] = 0;
}
Console.Write(vs[i,j]);
}
Console.WriteLine();
}
}
}
}
By zawrzeć to w jednym if()