#include<cstdio>
#include<cstdlib>
#include<iostream>
#include<algorithm>
#include<cstring>
#include<queue>
#include<vector>
#include<map>
#include<set>
#include<stack>
#include<string>
#include<cmath>
#include<cctype>
#include<ctime>
#include<bitset>
using namespace std;
const int maxlongint=2147483647;
const int inf=1000000000;
long long seed;
inline long long rand(long long l, long long r) {
    static long long mo=1e9+7, g=78125;
    return l+((seed*=g)%=mo)%(r-l+1);
}
long long x[1000010],y[1000010];
int main()
{
    int T;
    cin>>T;
    while(T--)
    {
        long long mxa=-maxlongint,mxb=-maxlongint,mna=maxlongint,mnb=maxlongint;
        int n;
        cin >> n >> seed;
        for (int i = 0; i < n; i++)
        {
            x[i] = rand(-1000000000, 1000000000),
            y[i] = rand(-1000000000, 1000000000);
        long long a=x[i]+y[i],b=x[i]-y[i];
        mxa=max(a,mxa);
        mna=min(a,mna);
        mxb=max(b,mxb);
        mnb=min(b,mnb);
        }
        cout<<max(mxa-mna,mxb-mnb)<<endl;
    }
}