#include<iostream.h>
#include<stdio.h>


int n,m,a[17][17],x,y,s,k,b,c,l;

FILE *f=fopen("flip.in", "r"),*g=fopen("flip.out", "w");

void antet()
{
fscanf(f,"%d %D",&n,&m);
}
void citire()
{
  for(b=0; b<n; b++)

     for(c=0; c<m; c++)

	  fscanf(f,"%d",&a[b][c]);
}

void calcul1()
{     s=0;
 for(x=0; x<n; x++)

	for(y=0; y<m;y++)

	       s=s+a[x][y];

	  if(s<0)
	       s=-1*s;

	   k=k+s;
}
void calcul2()
{ s=0;

  for(x=0;x<m; x++)

      for(y=0; y<n;y++)
	   s= s+a[x][y];

       if(s<0)
	s=-1*s;
      l=l+s;
}


void main()
{

antet();
citire();
calcul1();
calcul2();
	   if(k>=l)
	      fprintf(g,"%d",k);
	   else
	      fprintf(g,"%d",l);
}