VAR a:array [1..100] of longint;
i,j,d:longint;
BEGIN
for i:=1 to 5 do
read(a[i]);
for i:=1 to 5-1 do
begin
for j:=1 to 5-i do
if a[j]>a[j+1] then
begin d:=a[j]; a[j]:=a[j+1]; a[j+1]:=d end;
end;
writeln(a[4]+a[5])
END.
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