#include <bits/stdc++.h>

#define pb push_back
#define mp make_pair
#define mt make_tuple
#define ll long long
#define pii pair<int,int>
#define tii tuple <int,int,int>
#define N 100005
#define mod 2000003
#define X first
#define Y second
#define eps 0.0000000001
#define all(x) x.begin(),x.end()
#define tot(x) x+1,x+n+1
using namespace std;
int i, j;
int main() {
    cin.sync_with_stdio(0);
    cout.sync_with_stdio(0);

    for(i = 1; i <= 16; i++) {
        for(j = 1; j <= 16; j++) {
            if(i % 2) {
                if(j % 2)
                    cout << 1 << ' ';
                else
                    cout << "2 ";
            } else {
                if(j % 2)
                    cout << 2 << ' ';
                else
                    cout << "1 ";
            }
        }

        cout << "\n";
    }

    return 0;
}