Program hotrotinhoc_hoc24;
const fi='dlv.inp';
fo='dlr.out';
var i,n,t: integer;
f: text;
a: array[1..100] of integer;
procedure ip;
begin
assign(f,fi);
reset(f);
readln(f,n);
for i:=1 to n do read(f,a[i]);
close(f);
end;
procedure out;
begin
assign(f,fo);
rewrite(f);
t:=0;
for i:=1 to n do t:=t+a[i];
write(f,t);
close(f);
end;
begin
ip;
out;
end.