#include<fstream>
using namespace std;

ifstream cin("infinit.in");
ofstream cout("infinit.out");

int n;

unsigned long long a,b,aa,bb,ans,t[100]={1,1,2,3,5,8,13,21,34,55,89,144,233,377,610,987,1597,2584,4181,6765,10946,17711,28657,46368,75025,121393,196418,317811,514229,832040,1346269,2178309,3524578,5702887,9227465,14930352,24157817,39088169,63245986,102334155,165580141,267914296,433494437,701408733,1134903170,1836311903,2971215073,4807526976,7778742049,12586269025,20365011074,32951280099,53316291173,86267571272,139583862445,225851433717,365435296162,591286729879,956722026041,1548008755920,2504730781961,4052739537881,6557470319842,10610209857723,17167680177565,27777890035288,44945570212853,72723460248141,117669030460994,190392490709135,308061521170129,498454011879264,806515533049393,1304969544928657,2111485077978050,3416454622906707,5527939700884757,8944394323791464,14472334024676221,23416728348467685,37889062373143906,61305790721611591,99194853094755497,160500643816367088,259695496911122585,420196140727489673,679891637638612258,1100087778366101931,1779979416004714189,2880067194370816120,4660046610375530309,7540113804746346429,12200160415121876738};

int main()
{
	int i,j;
	cin>>n;
	for(i=1;i<=n;i++)
	{
		cin>>a>>b;
		a--;
		for(j=92;j>0;j--)
		{
			if(a>t[j])
			{
				a-=t[j];
				aa+=t[j-1];
			}
			if(b>t[j])
			{
				b-=t[j];
				bb+=t[j-1];
			}
		}
		ans=bb-aa;
		cout<<ans<<endl;
	}
	return 0;
}