A_Ian_Visits_Mary.cpp

#include <map>
#include <set>
#include <stack>
#include <vector>
#include <math.h>
#include <string.h>
#include <iostream>
#include <algorithm>
#include <unordered_set>
#include <unordered_map>
#define ll long long
#define py cout << "YES" << endl
#define pn cout << "NO" << endl
using namespace std;
// #define m 1e9+7

int main()
{
    int t = 1;
    cin >> t;
    while (t--)
    {
        ll a, b;
        cin >> a >> b;

        cout << 2 << endl;
        cout << 1 << " " << b - 1 << endl;
        cout << a << " " << b << endl;
    }
    return 0;
}