//    https://youtu.be/telPDj1VQjQ

#include<bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef long double ld;
typedef long long unsigned llu;
typedef pair<long long, long long> pll;
const long long inf = 2000000000000000000LL;	// 2e18
#define pi                  acos(-1.0)
#define fast                ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0)
#define shesh               "\n"
#define ff                  first
#define ss                  second
#define pb                  push_back
#define bp                  pop_back
#define pf                  push_front
#define fp                  pop_front
#define ub                  upper_bound
#define lb                  lower_bound
#define all(x)              x.begin(), x.end()
#define debug(x)            cout<<"debug "<<x<<"\n"
#define mest(a,b)           memset(a,b,sizeof(a))

int main(){
    //fast;
    ll t,n,m,i,j,k,temp,flag,ans,h,w;
    //cin>>h>>w;
    scanf("%lld%lld",&h,&w);
    ll a[h][w];
    for(i=0;i<h;i++){
        for(j=0;j<w;j++){
            //cin>>a[i][j];
            scanf("%lld",&a[i][j]);
        }
    }
    for(i=0;i<h;i++){
        for(j=0;j<w;j++){
            //cin>>b[i][j];
            scanf("%lld",&temp);
            a[i][j]=abs(a[i][j]-temp);
        }
    }
    vector<ll>s[h][w];
    for(i=0;i<h;i++){
        for(j=0;j<w;j++){
            if(i+j==0){
                s[i][j].pb(a[i][j]);
                //s[i][j].insert(-1*c[i][j]);
                continue;
            }
            //cout<<i<<' '<<j<<' ';
            bool b[20000]={};
            if(i-1>=0){
                for(auto it=s[i-1][j].begin();it!=s[i-1][j].end();it++){
                    temp=*it;
                    temp-=a[i][j];
                    temp=abs(temp);
                    //cout<<temp<<' ';
                    if(!b[temp]){
                        s[i][j].pb(temp);
                        b[temp]=true;
                    }
                    //s[i][j].insert(temp);
                    temp=*it;
                    temp+=a[i][j];
                    //cout<<temp<<' ';
                    if(!b[temp]){
                        s[i][j].pb(temp);
                        b[temp]=true;
                    }
                    //s[i][j].insert(temp);
                }
            }
            if(j-1>=0){
                for(auto it=s[i][j-1].begin();it!=s[i][j-1].end();it++){
                    temp=*it;
                    temp-=a[i][j];
                    temp=abs(temp);
                    //cout<<temp<<' ';
                    if(!b[temp]){
                        s[i][j].pb(temp);
                        b[temp]=true;
                    }
                    //s[i][j].insert(temp);
                    temp=*it;
                    temp+=a[i][j];
                    //cout<<temp<<' ';
                    if(!b[temp]){
                        s[i][j].pb(temp);
                        b[temp]=true;
                    }
                    //s[i][j].insert(temp);
                }
            }
            //cout<<endl;
        }
    }
    temp=20000;
    for(auto it=s[h-1][w-1].begin();it!=s[h-1][w-1].end();it++) temp=min(temp,abs(*it));
    printf("%lld",temp);
    return 0;
}


Measured memory_bytes: 178816