#include<fstream.h>
#include<string.h>
ifstream f("cifra.in");
ofstream g("cifra.out");
int main(){
char a[110];
int nr,l,i,n;
int v[]={1,5,2,8,3,9,2,8,7,7,8,4,7,3,8,4,1,5,4,4,5,9,6,2,7,3,6,
2,1,1,2,8,1,7,2,8,5,9,8,8,9,3,0,6,1,7,0,6,5,5,6,2,5,1,
6,2,9,3,2,2,3,7,4,0,5,1,4,0,9,9,0,6,9,5,0,6,3,7,6,6,7,
1,8,4,9,5,8,4,3,3,4,0,3,9,4,0,7,1,0,0};
f>>n;
for(;n>0;n--){
f>>a;
l=strlen(a);
if(l>1)
nr=(a[l-2]-'0')*10+(a[l-1]-'0');
else
if(l==1) nr=(a[l-1]-'0');
g<<v[nr-1]<<"\n";
}
g.close();

return 0;

}