#define _USE_MATH_DEFINES
#include <bits/stdc++.h>
using namespace std;
typedef long long LL;
typedef unsigned long long ULL;
#define SZ(x) ((int)((x).size()))

template <typename T1, typename T2>
string print_iterable(T1 begin_iter, T2 end_iter, int counter) {
    bool done_something = false;
    stringstream res;
    res << "[";
    for (; begin_iter != end_iter and counter; ++begin_iter) {
        done_something = true;
        counter--;
        res << *begin_iter << ", ";
    }
    string str = res.str();
    if (done_something) {
        str.pop_back();
        str.pop_back();
    }
    str += "]";
    return str;
}

vector<int> SortIndex(int size, std::function<bool(int, int)> compare) {
    vector<int> ord(size);
    for (int i = 0; i < size; i++) ord[i] = i;
    sort(ord.begin(), ord.end(), compare);
    return ord;
}

template <typename T>
bool MinPlace(T& a, const T& b) {
    if (a > b) {
        a = b;
        return true;
    }
    return false;
}

template <typename T>
bool MaxPlace(T& a, const T& b) {
    if (a < b) {
        a = b;
        return true;
    }
    return false;
}

template <typename S, typename T>
ostream& operator <<(ostream& out, const pair<S, T>& p) {
    out << "{" << p.first << ", " << p.second << "}";
    return out;
}

template <typename T>
ostream& operator <<(ostream& out, const vector<T>& v) {
    out << "[";
    for (int i = 0; i < (int)v.size(); i++) {
        out << v[i];
        if (i != (int)v.size()-1) out << ", ";
    }
    out << "]";
    return out;
}

template<class TH>
void _dbg(const char* name, TH val){
    clog << name << ": " << val << endl;
}
template<class TH, class... TA>
void _dbg(const char* names, TH curr_val, TA... vals) {
    while(*names != ',') clog << *names++;
    clog << ": " << curr_val << ", ";
    _dbg(names+1, vals...);
}

#if DEBUG && !ONLINE_JUDGE
    ifstream input_from_file("input.txt");
    #define cin input_from_file

    #define dbg(...) _dbg(#__VA_ARGS__, __VA_ARGS__)
    #define dbg_arr(x, len) clog << #x << ": " << print_iterable(x, x+len, -1) << endl;
#else
    #define dbg(...)
    #define dbg_arr(x, len)
#endif

///////////////////////////////////////////////////////////////////////////
//////////////////// DO NOT TOUCH BEFORE THIS LINE ////////////////////////
///////////////////////////////////////////////////////////////////////////

const LL MOD = 1e9+7;
const LL inv2 = (MOD+1)/2;
const int MAXN = 3100;

LL val[MAXN][MAXN];

void make_average(LL& x, LL & y) {
    LL z = (x+y)*inv2 % MOD;
    x = z, y = z;
}

int main() {
    ios::sync_with_stdio(false);
    cin.tie(0); // Remove in problems with online queries!
    int N;
    int Q;
    cin >> N >> Q;
    vector<int> A(N);
    for (int i = 0; i < N; i++) cin >> A[i];
    for (int i = 0; i < N; i++) for (int j = i+1; j < N; j++){
        if (A[i] > A[j]) val[i][j] = 1;
        if (A[j] > A[i]) val[j][i] = 1;
    }

    for (int q = 0; q < Q; q++) {
        int I, J;
        cin >> I >> J;
        if (I > J) swap(I, J);
        I--, J--;
        for (int a = 0; a < N; a++) {
            if (a == I or a == J) continue;
            make_average(val[a][I], val[a][J]);
            make_average(val[I][a], val[J][a]);
        }
        make_average(val[I][J], val[J][I]);
    }
    LL res = 0;
    for (int i = 0; i < N; i++) for (int j = i+1; j < N; j++) res += val[i][j];
    res %= MOD;
    for (int i = 0; i < Q; i++) res = (res * 2) % MOD;
    cout << res << "\n";

}


Measured memory_bytes: 73984