public static void Main()
Console.WriteLine("rows: ");
int m = int.Parse(Console.ReadLine());
m = int.Parse(Console.ReadLine());
Console.WriteLine("columns: ");
int n = int.Parse(Console.ReadLine());
n = int.Parse(Console.ReadLine());
for (int i = 0; i < m; i++)
for (int j = 0; j < n; j++)
int[] prNums = new int[n];
for (int j = 0; j < n; j++)
for (int i = 0; i < m; i++)
for (int x = 2; x < a[i,j] / 2; x++)
if (isPrime == true) currSum += a[i,j];
for (int i = 0; i < m; i++)
for (int j = 0; j < n; j++)
Console.Write("{0,3}", a[i,j]);
for (int j = 0; j < n; j++)
Console.Write("{0,3}", prNums[j]);