void Solve(StreamScanner ss, StreamWriter sw)
{
//---------------------------------
var N = ss.Next(int.Parse);
var M = ss.Next(int.Parse);
var X = ss.Next(ModInt.Parse, N);
var Y = ss.Next(ModInt.Parse, M);
ModInt xs = 0;
for (var i = 0; i < N; i++)
{
xs += i * X[i] - (N - i - 1) * X[i];
}
ModInt ys = 0;
for (var j = 0; j < M; j++)
{
ys += j * Y[j] - (M - j - 1) * Y[j];
}
sw.WriteLine($"{xs * ys}");
//---------------------------------
}
