#include<iostream>
#include<fstream>
int N,M,a[100][100],S=0;
using namespace std;

int suma(){
    S=0;
    for(int i=1;i<=N;i++){
        for(int j=1;j<=M;j++){
            S+=a[i][j];
            }
        }
    }
int comutator(int x,int i){
    if(x==1){
        for(int j=1;j<=M;j++){
            a[i][j]*=-1;
            }
        }else{
            for(int j=1;j<=N;j++){
                    a[j][i]*=-1;
                    }
            }
    }

 int main()
 {int Smax;
    freopen("filip.in","r",stdin);
    cin>>N;
    cin>>M;
    for(int i=1;i<=N;i++){
        for(int j=1;j<=M;j++){
            cin>>a[i][j];
            }
        }
    fclose(stdin);
    suma();
    Smax=S;
    for(int i=1;i<=N;i++){
        for(int j=1;j<=M;j++){
            cout<<a[i][j]<<" ";
            }cout<<"\n";
        }
    comutator(2,2);
for(int i=1;i<=N;i++){
        for(int j=1;j<=M;j++){

            }cout<<"\n";
        }

 }