#include<fstream>
using namespace std;
int main ()
{unsigned long long int n,m,a[10000][10000],s=0,s1=0,s2=0,i,j;
ifstream f("flip.in");
f>>n;
f>>m;
for (i=1;i<=n;i++)
	for (j=1;j<=m;j++)
	   {f>>a[i][j];
	    s=s+a[i][j];
	   }
for (i=1;i<=n;i++)
	{for (j=1;j<=m;j++)
	 {s1=s1+a[i][j];
	  s2=s2+(a[i][j]*(-1));
	 }
	 if(s2>s1)
		s=s+s2-s1;
	 s2=0;
	 s1=0;
	}
for (i=1;i<=n;i++)
	{for (j=1;j<=m;j++)
	 {s1=s1+a[j][1];
	  s2=s2+(a[j][i]*(-1));
	 }
	 if(s2>s1)
		s=s+s2-s1;
	 s2=0;
	 s1=0;
	}
ofstream g("flip.out");
g<<s;
f.close();
g.close();
return 0;
}