#include <stdio.h>
#include <math.h>
#include <stdlib.h>

double myabs(double x)
{
    if (x < 0)
         return -x;
    return x;
}

int main(void)
{
    FILE *fp, *outfp;
    int n, m;
    double *a;

    if(!(fp = fopen("input.txt","r")))
    {
        return -1;
    }

    if(!(outfp = fopen("output.txt","r")))
    if (fscanf(fp, "%d%d", &n, &m) != 2)
    {
        return -1;
    }

    a = (double*) malloc(n * m * sizeof(double));
    if (a == NULL)
    {
        return -1;
    }

    for (int i = 0; i < n; i++)
    {
        for (int j = 0; j < m; j++)
        {
            if (fscanf(fp, "%lf", &a[i*m + j]) != 1)
            {
                return -1;
            }
        }
    }

    for (int t = 0; t < m; t++)
    {
        for (int j = m - 1; j > t; j--)
        {
            double sumj = 0;
            for (int i = 0 ; i < n; i++)
            {
                sumj += myabs(a[i*m + j]);
            }
            double sumj_prev = 0;
            for (int i = 0 ; i < n; i++)
            {
                sumj_prev += myabs(a[i*m + j - 1]);
            }
            if (sumj > sumj_prev)
            {
                continue;
            }
            for (int i = 0; i < n; i++)
            {
                double temp = a[i*m + j];
                a[i*m + j] = a[i*m + j - 1];
                a[i*m + j - 1] = temp;
            }
        }
    }
    return 0;
}