static void whatFlavors(int[] cost, int money)
{
var(i, j) = IceCreamParlor.GetTwoFlavors(cost, money);
Console.WriteLine($"{i+1} {j+1}");
}
public void FindPairsTests(int[] costs, int money, int i, int j)
{
var(x, y) = IceCreamParlor.GetTwoFlavors(costs, money);
Assert.Equal(i, x);
Assert.Equal(j, y);
}