#include <fstream>
using namespace std;
ifstream fin("date.in");
ofstream fout("date.out");
int main()
{
    int n,m,a[100][100],ok;
    fin>>n>>m;
    for(int i=1;i<=n;i++)
        for(int j=1;j<=m;j++) fin>>a[i][j];
    for(int i=1;i<=n;i++)
    {
        ok=1;
        for(int j=2;j<m;j++)
            if(a[i][j-1]<=a[i][j] && a[i][j]>=a[i][j+1] || a[i][j-1]>=a[i][j] && a[i][j]<=a[i][j+1]) ok=0;
        if(!ok)
        {
            for(int k=i;k<n;k++)
                for(int j=1;j<=m;j++) a[k][j]=a[k+1][j];
            n--;
            i--;
        }
    }
    for(int i=1;i<=n;i++)
        {
            for(int j=1;j<=m;j++) fout<<a[i][j]<<" ";
            fout<<endl;
        }
    fin.close();
    fout.close();
    return 0;
}