1816A Ian Visits Mary.cpp

/*
    author    : MishkatIT
    created   : Sunday 2023-04-09-20.45.12
*/
#include<bits/stdc++.h>
#define fio ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define debug(_) cout << #_ << " is " << _ << '\n';
using namespace std;
int main()
{
    fio;
    int t;
    cin >> t;
    while(t--)
    {
        int a, b;
        cin >> a >> b;
        cout << 2 << '\n';
        cout << 1 << ' ' << b - 1 << '\n';
        cout << a << ' ' << b << '\n';

    }
    return 0;
}