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#include <iostream>
#include <fstream>
using namespace std;
ifstream in("flip.in");
ofstream out("flip.out");
int n,m,i,j,v[20][20],x[20],y[20],s;
int main()
{
in>>n>>m;
for(i=1;i<=n;i++)
{
for(j=1;j<=m;j++)
{
in>>v[i][j];
x[j]=x[j]+v[i][j];
y[i]=y[i]+v[i][j];
}
}
for(i=1;i<=n;i++)
{
if(y[i]<0)
{
for(j=1;j<=m;j++)
{
v[i][j]=v[i][j]*-1;
}
}
}
for(i=1;i<=n;i++)
{
for(j=1;j<=m;j++)
{
in>>v[i][j];
x[j]=x[j]+v[i][j];
}
}
for(i=1;i<=m;i++)
{
if(x[i]<0)
{
for(j=1;j<=n;j++)
{
v[j][i]=v[j][i]*-1;
}
}
}
for(i=1;i<=n;i++)
{
for( j=1;j<=m;j++)
{
s=s+v[i][j];
cout<<v[i][j];
}
}
out<<s;
return 0;
}