var s:string;f1,f2:text;
    x:byte;      
    n,t,i,nr,sl:longint;      
 begin
 assign(f1,'cifra.in');      
reset(f1);      
assign(f2,'cifra.out');      
rewrite(f2);      
 readln(f1,t);      
 for i:=1 to t do begin     
     readln(f1,s);      
     n:=length(s);      
     if n=1 then sl:=ord(s[1])-48     
        else begin     
             sl:=ord(s[n-1])-48;      
             sl:=10*sl+ord(s[n])-48;      
             end;      
     nr:=4*(sl div 20);      
     sl:=sl mod 20;      
     if sl>=1then inc(nr);      
     if sl>=2then nr:=nr+4;      
     if sl>=3then nr:=nr+7;      
     if sl>=4then nr:=nr+6;      
     if sl>=5then nr:=nr+5;      
     if sl>=6then nr:=nr+6;      
     if sl>=7then nr:=nr+3;      
     if sl>=8then nr:=nr+6;      
     if sl>=9then nr:=nr+9;      
     if sl>=11then inc(nr);      
     if sl>=12then nr:=nr+6;      
     if sl>=13then nr:=nr+3;      
     if sl>=14then nr:=nr+6;      
     if sl>=15then nr:=nr+5;      
     if sl>=16then nr:=nr+6;      
    if sl>=17then nr:=nr+7;      
    if sl>=18then nr:=nr+4;      
   if sl>=19then nr:=nr+9;      
     writeln(f2,nr mod 10);      
     end;      
 close(f1);      
close(f2);      
end.