public ShoppingList ReadNextCase()
{
var sl = new ShoppingList();
var line1 = Console.ReadLine().Split(' ');
sl.B = GetIntVal(line1[0]);
sl.W = GetIntVal(line1[1]);
var line2 = Console.ReadLine().Split(' ');
sl.X = GetIntVal(line2[0]);
sl.Y = GetIntVal(line2[1]);
sl.Z = GetIntVal(line2[2]);
return sl;
}
public long ComputeLowestCost(ShoppingList sl)
{
long bCost = (sl.B*sl.X);
long bCostAlt = (sl.B * (sl.Y + sl.Z));
if (bCostAlt < bCost)
bCost = bCostAlt;
long wCost = (sl.W * sl.Y);
long wCostAlt = (sl.W * (sl.X+ sl.Z));
if (wCostAlt < wCost)
wCost = wCostAlt;
return bCost + wCost;
}