#include <fstream> 
#include <string> 

using namespace std;  
     
  
int main(){  
     int sir[102] = {0,1,5,2,8,3,9,2,8,7,7,8,4,   
        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}; 
     int n,prim,i;   
     char s[102];

  
  ifstream f("cifra.in");
  ofstream g("cifra.out");
  
  f>>prim;
    
    
  for (i=1;i<=prim;i++) {     
    f>>s; 
    if (strlen(s)>=2)   
    n = (s[strlen(s)-2]-48)*10+s[strlen(s)-1]-48;   
    else   
    n = s[strlen(s)-1]-48;   
  
   g<<sir[n]<<endl;  
  }   
 
  
  return 0;   
}