import std;

void main () {
    int N = readln.chomp.to!int;
    auto A = readln.split.to!(int[]);
    auto B = readln.split.to!(int[]);

    auto C = new int[](2 * N);
    foreach (i; 0..2 * N) C[i] = A[i] + B[i];

    auto index = iota(2 * N).array;
    index.sort!((a, b) => C[a] < C[b]);

    long X = 0, Y = 0;
    foreach (i, v; index) {
        if (i % 2 == 0) X += A[v];
        if (i % 2 == 1) Y += B[v];
    }

    writeln(X - Y);
}

void read (T...) (string S, ref T args) {
    import std.conv : to;
    import std.array : split;
    auto buf = S.split;
    foreach (i, ref arg; args) {
        arg = buf[i].to!(typeof(arg));
    }
}