reg C stress OK

#include <iostream>
#include <cmath>
#include <vector>
#include <queue>
#include <algorithm>
#include <string>
#include <stack>
#include <set>
#include <map>
#define pii pair <int, int>
#define pb(x) push_back(x)
#include <ctime>
using namespace std;
using ll = long long;
using ld = long double;
using db = double;
void cv(vector <int> &v) {
    for (auto x : v) cout << x << ' ';
    cout << "\n";
}

void cvl(vector <ll> &v) {
    for (auto x : v) cout << x << ' ';
    cout << "\n";
}


void cvv(vector <vector <int> > &v) {
    for (auto x : v) cv(x);
    cout << "\n";
}

void cvb(vector <bool> v) {
    for (bool x : v) cout << x << ' ';
    cout << "\n";
}

void cvs(vector <string>  v) {
    for (auto a : v) {
        cout << a << "\n";
    }
}

void cvp(vector <pii> a) {
    for (auto p : a) {
        cout << p.first << ' ' << p.second << "\n";
    }
    cout << "\n";
}


vector <ll> a, pf;
int n, ls = -1, k; // last < 0
ll x, dS = 0;

vector <ll> dulla;
vector <vector <ll> > aldul;

bool random = 1;

bool sh = 0;


ll dull() {
    if (sh) {
        cout << "x = " << x << "\n";
    }
    ll r = 0;
    for (int i = 0; i < n; ++i) {
        dulla[i] += x;
        r += abs(dulla[i]);
    }
    aldul.push_back(dulla);
    if (sh) {
        cout << "dulla\n";
        cvl(dulla);
    }
    return r;
}

ll fmr0() {
    ll one = 0, two = 0, three = 0;
    //ONE
    int oneid = -1;
    ll del = 0;
    if (ls != -1) {
        if (ls == 0) {
            if (a[0] + dS < 0) {
                if (sh) {
                    cout << "A\n";
                }
                one = abs(a[0]) - dS;
                oneid = 0;
            }
        } else {
            if (sh) {
                cout << "B\n";
            }
            int L = 0, R = ls + 1, M;
            while (L + 1 < R) {
                M = (L + R) / 2;
                if (a[M] + dS < 0) {
                    L = M;
                } else {
                    R = M;
                }
            }
            if (sh) {
                cout << "L = " << L << "\n";
            }
            one = abs(pf[L]) - dS * (L + 1);
            oneid = L;
            if (a[0] + dS >= 0) {
                if (sh) {
                    cout << "C\n";
                }
                one = 0;
                oneid = -1;
            }
        }
    }
    if (sh) {
        cout << "oneid = " << oneid << "\n";
        cout << "one = " << one << "\n";
    }
    //TWO
    if (ls != -1) {
        if (sh) {
            cout << "TWO\n";
        }
        ll del = 0;
        if (oneid != -1) {
            del = pf[oneid];
        }
        ll pf2 = abs(pf[ls] - del);
        two = dS * (ls - oneid) - pf2;
        if (sh) {
            cout << "del = " << del << "\n";
            cout << "pf2 = " << pf2 << "\n";
            cout << "ls - oneid = " << (ls - oneid) << "\n";
            cout << "dS * (ls - oneid) = " << dS * (ls - oneid) << "\n";
        }
    }
    if (sh) {
        cout << "two = " << two << "\n";
    }
    //THREE
    if (ls != n - 1) {
        del = 0;
        if (ls >= 0) {
            del = pf[ls];
        }
        ll pf3 = pf[n - 1] - del;
        three = pf3 + dS * (n - 1 - ls);
    }
    if (sh) {
        cout << "three = " << three << "\n";
    }
    if (sh) {
        cout << "one two three  = " << one << ' ' << two << ' ' << three << "\n";
    }
    ll res = one + two + three;
    return res;
}

ll fls0() {
    ll one = 0, two = 0, three = 0;
    ll del = 0;
    //ONE
    int oneid = -1;
    if (ls != -1) {
        one = abs(pf[ls]) + abs(dS) * (ls + 1);
        oneid = ls;
    }
    if (sh) {
        cout << "one = " << one << "\n";
        cout << "oneid = " << oneid << "\n";
    }
    if (ls == n - 1) {
        if (sh) {
            cout << "ret one\n";
        }
        return one;
    }
    //TWO
    bool is2 = 0;
    int L = ls + 1, R = n, M;
    if (a[ls + 1] - abs(dS) < 0) {
        is2 = 1;
        while (L + 1 < R) {
            M = (L + R) / 2;
            if (a[M] - abs(dS) < 0) {
                L = M;
            } else {
                R = M;
            }
        }
        del = 0;
        if (oneid != -1) {
            del = pf[oneid];
        }
        ll pf2 = abs(pf[L] - del);
        two = abs(dS) * (L - oneid) - pf2;
        if (L == n - 1) {
            return one + two;
        }
    } else {
        cout << "no2\n";
    }
    if (sh) {
        cout << "two  = " << two << "\n";
    }
    //THREE
    del = 0;
    ll nmb = n;
    if (is2) {
        del = pf[L];
        nmb = n - 1 - L;
    } else if (oneid != -1) {
        del = pf[oneid];
        nmb = n - 1 - oneid;
    }
    ll pf3 = abs(pf[n - 1] - del);
    three = pf3 - abs(dS) * nmb;
    if (sh) {
        cout << "three = " << three << "\n";
    }
    //TOT
    ll res = one + two + three;
    return res;
}

void slv() {
    dS = 0;
    vector <ll> alx;
    aldul.clear();
    if (!random) {
        cin >> n >> k;
        a.resize(n);
        for (ll &i : a) cin >> i;
    } else {
        n = rand() % 10 + 3;
        k = rand() % 10 + 20;
        a.resize(n);
        for (int i = 0; i < n; ++i) {
            a[i] = rand() % 100 - 30;
        }
    }
    sort(a.begin(), a.end());
    dulla = a;
    pf.assign(n, a[0]);
    for (int i = 1; i < n; ++i) {
        pf[i] = pf[i - 1] + a[i];
    }
    int i = -1;
    while (i + 1 < n && a[i + 1] < 0) {
        i++;
    }
    ls = i;
    if (sh) {
        cout << "GO\n";
        cout << "a\n";
        cvl(a);
        cout << "dulla\n";
        cvl(dulla);
        cout << "pf\n";
        cvl(pf);
        cout << "ls = " << ls << "\n";
    }

    for (int go = 0; go < k; ++go) {
        if (!random) {
            cin >> x;
        } else {
            x = rand() % 10 + pow(-1, rand() % 2) * 20;
        }
        alx.push_back(x);
        dS += x;
        ll my;
        if (dS >= 0) {
            my = fmr0();
        } else {
            my = fls0();
        }
        ll stup = dull();
        if (stup != my) {
            cout << "WA\n";
            cout << "a\n";
            cvl(a);
            cout << "pf.size() = " << pf.size() << "\n";
            cout << "pf\n";
            cvl(pf);
            cout << "dS = " << dS << "\n";
            cout << "my stup = " << my << ' ' << stup << "\n";
            cout << "alx\n";
            cvl(alx);
            cout << "aldul\n";
            for (auto v: aldul) {
                cvl(v);
            } cout << "\n\n";
            exit(0);
        } else {
            cout << "OK\n";
        }
    }
    cout << "OK " << k << " tests \n";;
}
/*
7 1
-26 -8 20 22 28 33 69
-15


WA
a
-26 -8 20 22 28 33 69
pf.size() = 7
pf
-26 -34 -14 8 36 69 138
dS = -15
my stup = 64 161
alx
-15
aldul
-41 -23 5 7 13 18 54
*/

int main() {
    /*ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);*/
    srand(time(0));
    while (1) {
        slv();
    }
}