// yukicoder no.488 main.go
// #D 
package main

import (
	"bufio"
	"fmt"
	"io"
	"os"
)

func check(edge [][]bool, p1, p2, p3, p4 int) bool {
	if edge[p1][p3] || edge[p2][p4] {
		return false
	}
	return edge[p4][p1] && edge[p1][p2] && edge[p2][p3] && edge[p3][p4]
}

func solve(in io.Reader, out, err io.Writer) {
	num, num_edge := 0, 0
	fmt.Fscan(in, &num, &num_edge)
	edgeTable := make([][]bool, num)
	for i := range edgeTable {
		edgeTable[i] = make([]bool, num)
	}

	for i := 0; i < num_edge; i++ {
		a, b := 0, 0
		fmt.Fscan(in, &a, &b)
		edgeTable[a][b], edgeTable[b][a] = true, true
	}

	count := 0
	for i := 0; i < num; i++ {
		for jj := i + 1; jj < num; jj++ {
			for kkk := jj + 1; kkk < num; kkk++ {
				for LLLL := kkk + 1; LLLL < num; LLLL++ {
					if check(edgeTable, i, jj, kkk, LLLL) {
						count++
					}
					if check(edgeTable, i, kkk, LLLL, jj) {
						count++
					}
					if check(edgeTable, i, LLLL, jj, kkk) {
						count++
					}
				}
			}
		}
	}

	fmt.Fprintln(out, count)
}

func main() {
	br := bufio.NewReaderSize(os.Stdin, int(1e7))
	solve(br, os.Stdout, os.Stderr)
}