#include 

using namespace std;
int dp[100][100];
int matrica[100][100];
int x, y;
pair path[100][100];
int rec(int i, int j){
    if((i==x-1)and(j==y-1)){
        path[i][j] = make_pair(-1, -1);
        return(matrica[i][j]);
    }

    if(dp[i][j]!=-1){
        return(dp[i][j]);
    }

    int result=0;
    int down = 0, right = 0;
    if(i+1 right) {
        path[i][j] = make_pair(i + 1, j);
    }
    else {
        path[i][j] = make_pair(i, j + 1);
    }
    dp[i][j]=result;
    return(result);
}
int main()
{

cin>>x>>y;
for(int i=0; i>matrica[i][j];
    }
}

for(int i=0; i i = make_pair(0, 0); i != make_pair(-1, -1); i = make_pair(path[i.first][i.second].first, path[i.first][i.second].second)) {
        cout << i.first + 1 << " " << i.second + 1 << endl;
    }
}