#include<bits/stdc++.h>
using namespace std;
#define int long long
const int inf = 2000000000000000000;
signed main(){
    int x,y;cin>>x>>y;
    int n=x*y;
    cout<<n<<" "<<n<<"\n";
    for(int i=1;i<=x;i++){
        if(i<n){
            cout<<i<<" "<<i+1<<"\n";
        }else{
            cout<<i<<" "<<1<<"\n";
        }
    }
    for(int i=0;i<x;i++){
        int f=x+1+(i*(y-1));
        cout<<i+1<<" "<<f<<"\n";
        for(int j=0;j<y-2;j++){
            cout<<f+j<<" "<<f+j+1<<"\n";
        }
    }
}