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#include <fstream>
#include <cmath>
using namespace std;
ofstream fout("cifra.out");
ifstream fin("cifra.in");
string n;
int j;
int main()
{
fin>>j;
for(int i=1;i<=j;i++)
{
fin>>n;
switch(n.at(n.length()-1))
{
case '1': fout<<1<<'\n';break;
case '2': fout<<5<<'\n';break;
case '3': fout<<2<<'\n';break;
case '4': fout<<8<<'\n';break;
case '5': fout<<3<<'\n';break;
case '6': fout<<9<<'\n';break;
case '7': fout<<2<<'\n';break;
case '8': fout<<8<<'\n';break;
case '9': fout<<7<<'\n';break;
case '0': fout<<7<<'\n';break;
}
}
}