#include <bits/stdc++.h>
using namespace std;
#define REP(i, n) for(int i=0 ; (i)<(int)(n) ; (i)++)

int main(void){
    int a, b;
    cin >> a >> b;
    if(a == b){
        REP(i, 2*a) REP(j, 2*b){
            cout << i*a << ' ' << j*b << endl;
        }
        return 0;
    }
    
    REP(i, a*a+b*b){
        cout << (a+a*i)%(a*a+b*b) << ' ' << (b*i)%(a*a+b*b) << endl;
    }
    REP(i, a*a+b*b){
        cout << (a*2+a*i)%(a*a+b*b) << ' ' << (b+b*i)%(a*a+b*b) << endl;
    }
}