var a,a1,a2,sum,n,i:integer;
begin
readln (n);
for i:=1 to n do
readln (a);
a1:=a div 10;
a2:=a mod 10;
if (a1=1) or (a2=1) then sum:=sum+a;
end;
writeln (sum);
end.
var a,a1,a2,sum,n,i:integer;
begin
readln (n);
for i:=1 to n do
begin
readln (a);
a1:=a div 10;
a2:=a mod 10;
if (a1=1) or (a2=1) then sum:=sum+a;
end;
writeln (sum);
end.