var
r, a : real;
begin
read (r, a);
if pi * sqr (r) > sqr (a) then writeln ('Kruga')
else if pi * sqr (r) < sqr (a) then writeln ('Kvadrata')
else writeln ('=');
end.
var
r, a : real;
begin
read (r, a);
if pi * sqr (r) > sqr (a) then writeln ('Kruga')
else if pi * sqr (r) < sqr (a) then writeln ('Kvadrata')
else writeln ('=');
end.