#include<bits/stdc++.h>
using namespace std;
using ll=long long;
int main()
{
    cin.tie(0)->sync_with_stdio(0);
    ll t;cin>>t;
    while(t--)
    {
        ll x,y,u,v;cin>>x>>y>>u>>v;
        if(x>u)swap(x,u),swap(y,v);
        ll ucnt=0,xcnt=0,mx=max(y,v);
        ll ok=0,ng=1LL<<60;
        while(abs(ok-ng)>1)
        {
            ll mid=(ok+ng)/2;
            ll tmp1=2*mid,tmp2=2*(mid+1);
            {
                ll c=mx+mid;
                if(c<=60)
                {
                    ucnt=u/(1LL<<c);
                    xcnt=x/(1LL<<c);
                }
                tmp1+=ucnt-xcnt;
            }
            {
                ll c=mx+mid+1;
                if(c<=60)
                {
                    ucnt=u/(1LL<<c);
                    xcnt=x/(1LL<<c);
                }
                tmp2+=ucnt-xcnt;
            }
            if(tmp1>=tmp2)ok=mid;
            else ng=mid;
        }
        if(mx+ok<=60)
        {
            ucnt=u/(1LL<<(mx+ok));
            xcnt=x/(1LL<<(mx+ok));
        }
        ll ans=ucnt-xcnt+abs(mx-y)+abs(mx-v);
        cout<<ans<<"\n";
    }
}