import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.PrintStream;
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.Iterator;


public class Main_yukicoder118 {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        Printer pr = new Printer(System.out);

        final long MOD = 1_000_000_007L;

        int n = sc.nextInt();
        int[] a = new int[100 + 1];
        for (int i = 0; i < n; i++) {
        	a[sc.nextInt()]++;
        }

        int[] sum = new int[100 + 1];
        for (int i = 1; i <= 100; i++) {
        	sum[i] = sum[i - 1] + a[i];
        }

        long ret = 0;
        for (int i = 1; i <= 100; i++) {
    		if (a[i] == 0) {
    			continue;
    		}

    		int k = 1;
        	for (int j = i + 1; j <= 100; j++) {
        		if (a[j] == 0) {
        			continue;
        		}

        		if (k < 2) {
        			k++;
        		} else {
        			ret = ret + (long)a[j] * (sum[j - 1] - sum[i]);
        			ret %= MOD;
        		}
        	}
        }

        pr.println(ret);

        pr.close();
        sc.close();
    }

	@SuppressWarnings("unused")
	private static class Scanner {
		BufferedReader br;
		Iterator<String> it;

		Scanner (InputStream in) {
			br = new BufferedReader(new InputStreamReader(in));
		}

		String next() throws RuntimeException  {
			try {
				if (it == null || !it.hasNext()) {
					it = Arrays.asList(br.readLine().split(" ")).iterator();
				}
				return it.next();
			} catch (IOException e) {
				throw new IllegalStateException();
			}
		}

		int nextInt() throws RuntimeException {
			return Integer.parseInt(next());
		}

		long nextLong() throws RuntimeException {
			return Long.parseLong(next());
		}

		float nextFloat() throws RuntimeException {
			return Float.parseFloat(next());
		}

		double nextDouble() throws RuntimeException {
			return Double.parseDouble(next());
		}

		void close() {
			try {
				br.close();
			} catch (IOException e) {
//				throw new IllegalStateException();
			}
		}
	}

	private static class Printer extends PrintWriter {
		Printer(PrintStream out) {
			super(out);
		}
	}
}