//http://w...content-available-to-author-only...f.com/COOK53/problems/RRMTRX2
 
#include <iostream>
using namespace std;
int n,m;
long long int s=0;
void calc(int** arr, int prod , int j)
{
	if(j==m)
	{
		s+=prod;
		return;
	}
	for(int i=0;i<n;i++)
		calc(arr,prod*arr[i][j],j+1);
}
int main()
{
	scanf("%d %d",&n,&m);
	int** arr = new int*[n];
	for(int i = 0; i < n; ++i)
   		arr[i] = new int[m];
	for(int i = 0 ;i<n;i++)
	for(int j = 0 ;j<m;j++)
		scanf("%d",&arr[i][j]);
	calc(arr,1,0);
	printf("%lld",s);
	return 0;
}

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MiAyCjEgMgozIDQ=

2 2
1 2
3 4