import java.io.OutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.IOException;
import java.util.Random;
import java.io.UncheckedIOException;
import java.io.Closeable;
import java.io.Writer;
import java.io.OutputStreamWriter;
import java.io.InputStream;

/**
 * Built using CHelper plug-in
 * Actual solution is at the top
 */
public class Main {
    public static void main(String[] args) throws Exception {
        Thread thread = new Thread(null, new TaskAdapter(), "", 1 << 29);
        thread.start();
        thread.join();
    }

    static class TaskAdapter implements Runnable {
        @Override
        public void run() {
            InputStream inputStream = System.in;
            OutputStream outputStream = System.out;
            FastInput in = new FastInput(inputStream);
            FastOutput out = new FastOutput(outputStream);
            BRemovingBlocks solver = new BRemovingBlocks();
            solver.solve(1, in, out);
            out.close();
        }
    }

    static class BRemovingBlocks {
        public void solve(int testNumber, FastInput in, FastOutput out) {
            int n = in.readInt();
            int[] a = new int[n];
            in.populate(a);

            Modular mod = new Modular(1e9 + 7);
            InverseNumber inv = new ModPrimeInverseNumber(n, mod);
            ModPreSum ps = new ModPreSum(n + 1, mod);
            ps.populate(i -> inv.inverse(i), n + 1);

            int sum = 0;
            for (int i = 0; i < n; i++) {
                int prob = 0;
                {
                    int l = 1;
                    int r = i + 1;
                    prob = mod.plus(prob, ps.intervalSum(l, r));
                }
                if (i < n - 1) {
                    int l = 2;
                    int r = n - i;
                    prob = mod.plus(prob, ps.intervalSum(l, r));
                }
                int contrib = mod.mul(a[i], prob);
                sum = mod.plus(sum, contrib);
            }
            for (int i = 1; i <= n; i++) {
                sum = mod.mul(sum, i);
            }

            out.println(sum);
        }

    }

    static class SequenceUtils {
        public static void swap(int[] data, int i, int j) {
            int tmp = data[i];
            data[i] = data[j];
            data[j] = tmp;
        }

    }

    static interface IntToIntegerFunction {
        int apply(int x);

    }

    static class ModPrimeInverseNumber implements InverseNumber {
        int[] inv;

        public ModPrimeInverseNumber(int[] inv, int limit, Modular modular) {
            this.inv = inv;
            inv[1] = 1;
            int p = modular.getMod();
            for (int i = 2; i <= limit; i++) {
                int k = p / i;
                int r = p % i;
                inv[i] = modular.mul(-k, inv[r]);
            }
        }

        public ModPrimeInverseNumber(int limit, Modular modular) {
            this(new int[limit + 1], limit, modular);
        }

        public int inverse(int x) {
            return inv[x];
        }

    }

    static interface InverseNumber {
        int inverse(int x);

    }

    static class Modular {
        static MillerRabin mr = new MillerRabin();
        int m;
        private boolean isPrime;

        public int getMod() {
            return m;
        }

        public Modular(int m) {
            this.m = m;
            isPrime = mr.mr(m, 10);
        }

        public Modular(long m) {
            this.m = (int) m;
            if (this.m != m) {
                throw new IllegalArgumentException();
            }
        }

        public Modular(double m) {
            this.m = (int) m;
            if (this.m != m) {
                throw new IllegalArgumentException();
            }
        }

        public int valueOf(int x) {
            x %= m;
            if (x < 0) {
                x += m;
            }
            return x;
        }

        public int valueOf(long x) {
            x %= m;
            if (x < 0) {
                x += m;
            }
            return (int) x;
        }

        public int mul(int x, int y) {
            return valueOf((long) x * y);
        }

        public int plus(int x, int y) {
            return valueOf(x + y);
        }

        public int subtract(int x, int y) {
            return valueOf(x - y);
        }

        public String toString() {
            return "mod " + m;
        }

    }

    static class FastInput {
        private final InputStream is;
        private byte[] buf = new byte[1 << 13];
        private int bufLen;
        private int bufOffset;
        private int next;

        public FastInput(InputStream is) {
            this.is = is;
        }

        public void populate(int[] data) {
            for (int i = 0; i < data.length; i++) {
                data[i] = readInt();
            }
        }

        private int read() {
            while (bufLen == bufOffset) {
                bufOffset = 0;
                try {
                    bufLen = is.read(buf);
                } catch (IOException e) {
                    bufLen = -1;
                }
                if (bufLen == -1) {
                    return -1;
                }
            }
            return buf[bufOffset++];
        }

        public void skipBlank() {
            while (next >= 0 && next <= 32) {
                next = read();
            }
        }

        public int readInt() {
            int sign = 1;

            skipBlank();
            if (next == '+' || next == '-') {
                sign = next == '+' ? 1 : -1;
                next = read();
            }

            int val = 0;
            if (sign == 1) {
                while (next >= '0' && next <= '9') {
                    val = val * 10 + next - '0';
                    next = read();
                }
            } else {
                while (next >= '0' && next <= '9') {
                    val = val * 10 - next + '0';
                    next = read();
                }
            }

            return val;
        }

    }

    static class MillerRabin {
        Modular modular;
        Power power;
        Random random = new Random();

        public boolean mr(int n, int s) {
            if (n <= 1) {
                return false;
            }
            if (n == 2) {
                return true;
            }
            if (n % 2 == 0) {
                return false;
            }
            int m = n - 1;
            while (m % 2 == 0) {
                m /= 2;
            }
            modular = new Modular(n);
            power = new Power(modular);
            for (int i = 0; i < s; i++) {
                int x = random.nextInt(n - 2) + 2;
                if (!mr0(x, n, m)) {
                    return false;
                }
            }
            return true;
        }

        private boolean mr0(int x, int n, int m) {
            return test(power.pow(x, m), m, n);
        }

        private boolean test(int y, int exp, int n) {
            int y2 = modular.mul(y, y);
            if (!(exp == n - 1 || test(y2, exp * 2, n))) {
                return false;
            }
            if (exp != n - 1 && y2 != 1) {
                return true;
            }
            if (y != 1 && y != n - 1) {
                return false;
            }
            return true;
        }

    }

    static class FastOutput implements AutoCloseable, Closeable, Appendable {
        private StringBuilder cache = new StringBuilder(10 << 20);
        private final Writer os;

        public FastOutput append(CharSequence csq) {
            cache.append(csq);
            return this;
        }

        public FastOutput append(CharSequence csq, int start, int end) {
            cache.append(csq, start, end);
            return this;
        }

        public FastOutput(Writer os) {
            this.os = os;
        }

        public FastOutput(OutputStream os) {
            this(new OutputStreamWriter(os));
        }

        public FastOutput append(char c) {
            cache.append(c);
            return this;
        }

        public FastOutput append(int c) {
            cache.append(c);
            return this;
        }

        public FastOutput println(int c) {
            return append(c).println();
        }

        public FastOutput println() {
            cache.append(System.lineSeparator());
            return this;
        }

        public FastOutput flush() {
            try {
                os.append(cache);
                os.flush();
                cache.setLength(0);
            } catch (IOException e) {
                throw new UncheckedIOException(e);
            }
            return this;
        }

        public void close() {
            flush();
            try {
                os.close();
            } catch (IOException e) {
                throw new UncheckedIOException(e);
            }
        }

        public String toString() {
            return cache.toString();
        }

    }

    static class IntExtGCDObject {
        private int[] xy = new int[2];

        public int extgcd(int a, int b) {
            return ExtGCD.extGCD(a, b, xy);
        }

        public int getX() {
            return xy[0];
        }

    }

    static class ExtGCD {
        public static int extGCD(int a, int b, int[] xy) {
            if (a >= b) {
                return extGCD0(a, b, xy);
            }
            int ans = extGCD0(b, a, xy);
            SequenceUtils.swap(xy, 0, 1);
            return ans;
        }

        private static int extGCD0(int a, int b, int[] xy) {
            if (b == 0) {
                xy[0] = 1;
                xy[1] = 0;
                return a;
            }
            int ans = extGCD0(b, a % b, xy);
            int x = xy[0];
            int y = xy[1];
            xy[0] = y;
            xy[1] = x - a / b * y;
            return ans;
        }

    }

    static class ModPreSum {
        private int[] pre;
        private Modular mod;

        public ModPreSum(int n, Modular mod) {
            pre = new int[n];
            this.mod = mod;
        }

        public void populate(IntToIntegerFunction a, int n) {
            if (n <= 0) {
                return;
            }
            pre[0] = a.apply(0);
            for (int i = 1; i < n; i++) {
                pre[i] = mod.plus(pre[i - 1], a.apply(i));
            }
        }

        public int intervalSum(int l, int r) {
            return mod.subtract(prefix(r), prefix(l - 1));
        }

        public int prefix(int i) {
            if (i < 0) {
                return 0;
            }
            return pre[Math.min(i, pre.length - 1)];
        }

    }

    static class Power implements InverseNumber {
        static IntExtGCDObject extGCD = new IntExtGCDObject();
        final Modular modular;

        public Power(Modular modular) {
            this.modular = modular;
        }

        public int pow(int x, int n) {
            if (n == 0) {
                return modular.valueOf(1);
            }
            long r = pow(x, n >> 1);
            r = modular.valueOf(r * r);
            if ((n & 1) == 1) {
                r = modular.valueOf(r * x);
            }
            return (int) r;
        }

        public int inverse(int x) {
            int ans = inverseExtGCD(x);
//        if(modular.mul(ans, x) != 1){
//            throw new IllegalStateException();
//        }
            return ans;
        }

        public int inverseExtGCD(int x) {
            if (extGCD.extgcd(x, modular.getMod()) != 1) {
                throw new IllegalArgumentException();
            }
            return modular.valueOf(extGCD.getX());
        }

    }
}



Measured memory_bytes: 45484