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#include <bits/stdc++.h>
#define mod 666013
using namespace std;
ifstream fin("hashuri.in");
ofstream fout("hashuri.out");
map <int,int> M;
map <int,int>::iterator it;
set <int> S;
int x,y,n,i;
char v[mod+8];
int main()
{
fin>>n;
S.insert(1000001);
for(i=1 ; i<=n ; ++i)
{
fin>>x>>y;
if( x == 1 )
{
v[ y % mod ] = 1;
}
else if( x == 2 )
{
v[ y % mod ] = 0;
}
else if( x == 3 )
{
fout<< int(v[ y % mod]) << '\n';
}
}
return 0;
}