using System;
public class Program
{
public static Tuple<A,A> c<A>(A a) { return Tuple.Create(a,a); }
public static void Main()
string[,] words = new string[,]
{"1", "\t1"},
{"2", "\t4"},
{"3", "\t9"},
};
// Loop based on length.
// ... Assumes each subarray is two elements long.
for (int i = 0; i < words.Length / 2; i++)
string s1 = words[i, 0];
string s2 = words[i, 1];
Console.WriteLine("{0} + {1}"+ s1+s2);
}
