<?php

function estSymetrique($N, $M, $matrix)
{

    $nbrColonePair = true;
    if($M%2 != 0){
        $nbrColonePair = false;
    }

    $nbrColoneCut = floor($M/2)-1;

    $sommeMoitierUneLigne = array();
    $total = 0;
    foreach($matrix as $ligne => $values){
        $count = 0;
        for($i=0;$i<=$nbrColoneCut;$i++){
            $count += $values[$i];
        }
        $total += $count;
        $sommeMoitierUneLigne[] = $count;
    }
    $sommeMoitierUneLigne['total'] = $total;


     $sommeMoitierDeuxLigne = array();
     $total = 0;
     foreach($matrix as $ligne => $values){

         $count = 0;
         if($nbrColonePair){ // si true
            for($i=$nbrColoneCut+1;$i<=$nbrColoneCut+1+$nbrColoneCut;$i++){
                $count += $values[$i];
            }
         } else { // si false
            for($i=$nbrColoneCut+2;$i<=$nbrColoneCut+2+$nbrColoneCut;$i++){
                $count += $values[$i];
            }
         }
         $total += $count;
         $sommeMoitierDeuxLigne[] = $count;
     }
     $sommeMoitierDeuxLigne['total'] = $total;


    if($sommeMoitierUneLigne['total'] != $sommeMoitierDeuxLigne['total']){
        echo 0;
        die();
    }

    for($i=0;$i<=count($sommeMoitierUneLigne)-2;$i++){
        if($sommeMoitierUneLigne[$i] != $sommeMoitierDeuxLigne[$i]){
            echo 0;
            die();
        }
    }

    unset($sommeMoitierUneLigne);
    unset($sommeMoitierDeuxLigne);

    $sommeMoitierUneColone = array();
    for($i=0;$i<=$nbrColoneCut;$i++){
        $count = 0;
        foreach($matrix as $ligne => $values){
            $count += $values[$i];
        }
        $sommeMoitierUneColone[] = $count;
    }


    $sommeMoitierDeuxColone = array();
    for($i=$M-1;$i>=$M-1-$nbrColoneCut;$i--){
        $count = 0;
        foreach($matrix as $ligne => $values){
            $count = $count + $values[$i];
        }

        $sommeMoitierDeuxColone[] = $count;
    }

    for($i=0;$i<=count($sommeMoitierUneColone)-2;$i++){
        if($sommeMoitierUneColone[$i] != $sommeMoitierDeuxColone[$i]){
            echo 0;
            die();
        }
    }

    echo 1;

}

$N = intval(fgets(STDIN));
$M = intval(fgets(STDIN));
$matrix = array();
for ($_i = 0; $_i < $N; $_i++)
    $matrix[] = array_map("intval", explode(" ", rtrim(fgets(STDIN), "\n")));

estSymetrique($N, $M, $matrix);
?>