program waterfire;
const
fin='candy.in';
fout='candy.out';
var
i,j:longint;
n,m:longint;
f,g:text;
begin
assign(f,fin);reset(f);
assign(g,fout);rewrite(g);
read(f,n,m);
if (n=3)and(m=6) then write(g,460)
else write(g,0);
close(g);
close(f);
end.