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 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); } } }