public void GetChecksumTest()
{
string input1 = "5 1 9 5";
string input2 = "7 5 3";
string input3 = "2 4 6 8";
var row1 = ci.GetList(input1, ' ');
var row2 = ci.GetList(input2, ' ');
var row3 = ci.GetList(input3, ' ');
List <int>[] inputMatrix = { row1, row2, row3 };
int result = dt.GetChecksum(inputMatrix);
int want = 18;
Assert.AreEqual(want, result);
}