var f,g:text;
n:array [1..50] of integer;
t,nr,i,cif,j,m:integer;
begin
assign(f,'cifra.in');
reset(f);
assign(g,'cifra.out');
rewrite(g);
readln(f,t);
for i:=1 to t do
readln(f,n[i]);
for i:=1 to t do
begin
nr:=0;
j:=1;
m:=1;
while j<n[i] do
begin
nr:=nr+j*j;
j:=j+1;
m:=m+1;
end;

cif:=nr div 10;
writeln(g,cif);
end;
close(f);
close(g);
end.