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- #include<bits/stdc++.h>
- using namespace std;
- int main()
- {
- int i,j,k,d,t;
- while(1)
- {
- cin>>t;
- if(t==-1)
- break;
- while(t--)
- {
- cin>>d>>i;
- k=1;
- while(d--)
- {
- if(i%2==1)
- {
- k*=2;
- i=(i/2)+1;
- }
- else
- {
- k=(k*2)+1;
- i=(i/2);
- }
- }
- cout<<k/2<<endl;
- }
- }
- return 0;
- }
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