#include<cstdio>

const int N=1<<5;

int a[N][N],v[N];

void baza2(int x)
{
	int nr=0;
	while (x)
	{
		nr++;
		v[nr]=x%2;
		x=x&1;
	}
}

int main()
{
	freopen("flip.in","r",stdin);
	freopen("flip.out","w",stdout);
	int n,m;
	scanf("%d%d",&n,&m);
	for (int i=1;i<=n;i++)
		for (int j=1;j<=n;j++)
			scanf("%d",&a[i][j]);
	int x=1<<n,smax=-(1<<31);
	for (int i=0;i<x;i++)
	{
		baza2(i);
		int s=0;
		// vectorul v,modificam in functie de 0 si 1 coloanele matricei;
		// daca suma este negativa pe linie,modificam linia
	}
	return 0;
}