#include<iostream>
#include<vector>
using namespace std;
int main()
{
int n;
vector<int> m;
int k=0;
while(cin>>n)
{
m.push_back(n);
k++;
}
int p=k/3;
for(int j=0;j<p;j++)
{
int a=0;
for(int i=0;i<3;i++)
{
if(m[i]==1)a++;
}
m.erase(m.begin(),m.begin()+3);
if(a==0||a==1) cout<<"0";
if(a==2||a==3) cout<<"1";
}
return 0;
}
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