energy.cpp

#include <bits/stdc++.h>
using namespace std;

#define int long long
#define vi vector<int>
#define vii vector<vi>
#define ii pair<int,int>
#define fi first
#define sc second
#define pb push_back
#define stoi stoll
#define popcnt __builtin_popcount
#define getbit(x, k) ((x >> k) & 1)
#define all(x) (x).begin(),(x).end()
#define rall(x) (x).rbegin(),(x).rend()
#define FOR(i,j,k) for(int i=j; i<(int)k; ++i)
#define look(a) cerr <<#a<<": "<<a<<endl;
#define look2(a,b) cerr <<#a<<": "<<a<<" | "<<#b<<": "<<b<< endl;

void solve()
{
    int n,m;
    cin >> n >> m;
    vector<ii> a(n), b(m);
    FOR(i,0,n){
        cin >> a[i].fi;
        a[i].sc = i;
    }
    FOR(i,0,m){
        cin >> b[i].fi;
        b[i].sc = i;
    }
    sort(rall(a)); // Neu lam nguoc la sai
    sort(all(b));

    vector<ii> ans;
    int s = 0;
    FOR(i,0,n){
        s += a[i].fi*b[i].fi;
        ans.push_back({a[i].sc,b[i].sc});
    }
    sort(all(ans));
    cout << s << '\n';
    for(auto&i:ans) cout << i.sc + 1 << ' ';
}

signed main()
{
    cin.tie(0)->sync_with_stdio(0);
    freopen("in", "r", stdin);
    freopen("out", "w", stdout);
    int T = 1;
    // cin >> T;
    while (T--) {
        solve();
        cout << '\n';
    }
    cerr << "Time elapsed: " << 1.0 * clock() / CLOCKS_PER_SEC << " s.\n";
}