#include "bits/stdc++.h"

using namespace std;

vector<string> names;
vector<vector<string>> comp;
int k,n;

char go(int x, int y){
    for(int i=0;i<k;i++){
        int xi, yi;
        for(int j=0;j<n;j++){
            if(comp[i][j]==names[x])xi=j;
            if(comp[i][j]==names[y])yi=j;
        }
        bool isAlphabetic=true;
        for(int j=min(xi,yi)+1;j<=max(xi,yi);j++){
            if(comp[i][j]<comp[i][j-1]){
                isAlphabetic=false;
            }
        }
        if(!isAlphabetic){
            if(xi<yi)return '0';
            else return '1';
        }
    }
    return '?';
}

int main(){
    cin>>k>>n;
    for(int i=0;i<n;i++){
        string x;cin>>x;
        names.push_back(x);
    }
    for(int i=0;i<k;i++){
        vector<string> tmp;
        for(int j=0;j<n;j++){
            string x;cin>>x;
            tmp.push_back(x);
        }
        comp.push_back(tmp);
    }
    for(int i=0;i<n;i++){
        for(int j=0;j<n;j++){
            if(i==j){
                cout<<'B';
            } else {
                cout<<go(i,j);
            }
        }
        cout<<endl;
    }

}