#include <iostream>
#include <fstream>

using namespace std;

ifstream fin("bemo.in");
ofstream fout("bemo.out");
#define fin cin
#define fout cout

const short NMAX = 1500;
int a[NMAX+5][NMAX+5];
short n, m;

bool valid(short i, short j)
{
    return i >= 1 && i <= n && j >= 1 && j <= m;
}

int main()
{
    short l = 1, c = 1;
    fin>>n>>m;

    for (short i = 1; i <= n; i++)
        for (short j = 1; j <= m; j++) fin>>a[i][j];

    fout<<a[1][1];

    while (l < n && c < m) {
        int minim;

        if (valid(l+1, c)) minim = a[l+1][c];
        if (valid(l, c+1)) minim = min(minim, a[l][c+1]);

        fout<<' '<<minim;

        if (minim == a[l+1][c]) l++;
        else c++;
    }

    fout<<' '<<a[n][m];
    return 0;
}