#include<bits/stdc++.h>
using namespace std;
int main(){
    int t;cin>>t;
    while(t--){
        typedef long long ll;
        ll a,b,k;cin>>a>>b>>k;
        if(!k){
            cout<<labs(a-b)<<'\n';
            continue;
        }
        int z=__lg(k)+1;
        if(a>b) swap(a,b);
        ll w=(1ll<<z)-1;
        ll ans=0;
        if((a>>z)!=(b>>z)){
            if((a&w)==w) ans++;
            else if((~a&w)<=k)ans+=2;
            else ans+=3;
            ans+=((b>>z)-(a>>z)-1)*(2+(k!=w));
            a=b>>z<<z;
        }
        if(a==b);else
        if((a^b)<=k) ans++;
        else ans+=2;
        cout<<min(labs(a-b),ans)<<'\n';
    }
}

answer.code: In function ‘int main()’:
answer.code:26:18: error: no matching function for call to ‘min(long int, ll&)’
   26 |         cout<<min(labs(a-b),ans)<<'\n';
      |               ~~~^~~~~~~~~~~~~~~
In file included from /usr/include/c++/13/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/13/bits/stdc++.h:51,
                 from answer.code:1:
/usr/include/c++/13/bits/stl_algobase.h:233:5: note: candidate: ‘template<class _Tp> constexpr const _Tp& std::min(const _Tp&, const _Tp&)’
  233 |     min(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/13/bits/stl_algobase.h:233:5: note:   template argument deduction/substitution failed:
answer.code:26:18: note:   deduced conflicting types for parameter ‘const _Tp’ (‘long int’ and ‘ll’ {aka ‘long long int’})
   26 |         cout<<min(labs(a-b),ans)<<'\n';
      |               ~~~^~~~~~~~~~~~~~~
/usr/include/c++/13/bits/stl_algobase.h:281:5: note: candidate: ‘template<class _Tp, class _Compare> constexpr const _Tp& std::min(const _Tp&, const _Tp&, _Compare)’
  281 |     min(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/13/bits/stl_algobase.h:281:5: note:   template argument deduction/substitution failed:
answer.code:26:18: note:   deduced conflicting types for parameter ‘const _Tp’ (‘long int’ and ‘ll’ {aka ‘long long int’})
   26 |         cout<<min(labs(a-b),ans)<<'\n';
      |               ~~~^~~~~~~~~~~~~~~
In file included from /usr/include/c++/13/algorithm:61:
/usr/include/c++/13/bits/stl_algo.h:5775:5: note: candidate: ‘template<class _Tp> constexpr _Tp std::min(initializer_list<_Tp>)’
 5775 |     min(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/13/bits/stl_algo.h:5775:5: note:   template argument deduction/substitution failed:
answer.code:26:18: note:   mismatched types ‘std::initializer_list<_Tp>’ and ‘long int’
   26 |         cout<<min(labs(a-b),ans)<<'\n';
      |               ~~~^~~~~~~~~~~~~~~
/usr/include/c++/13/bits/stl_algo.h:5785:5: note: candidate: ‘template<class _Tp, class _Compare> constexpr _Tp std::min(initializer_list<_Tp>, _Compare)’
 5785 |     min(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/13/bits/stl_algo.h:5785:5: note:   template argument deduction/substitution failed:
answer.code:26:18: note:   mismatched types ‘std::initializer_list<_Tp>’ and ‘long int’
   26 |         cout<<min(labs(a-b),ans)<<'\n';
      |               ~~~^~~~~~~~~~~~~~~