program ucif;
const a:array[0..100] of byte=(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);   
var i,us,p,e,t,j,c,m1,m2,m,m3,m4:integer;f,g:text;n:string[200];
begin
assign (f,'cifra.in');reset(f);
assign (g,'cifra.out');rewrite(g);
readln(f,t);
for i:=1 to t do begin
    readln(f,n);
val(n[length(n)],m1,c);val(n[length(n)-1],m2,c);
j:=1;us:=0;m:=m2*10+m1;
writeln(g,a[m]);end;
close(f);
close(g);
end.