program ideone;
var
a, b :integer;
begin
readln (a);
readln (b);
if (a > b)then
begin
writeln (a mod 10 + a div 100 + a mod 100 div 10);
end
else
begin
writeln (b mod 10 + b div 100 + a mod 100 div 10);
end
end.
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