uses crt;
const fi='dulieu.txt'
var f1:text;
a,b:array[1..100]of integer;
n,i:integer;
begin
clrscr;
assign(f1,fi); reset(f1);
n:=0;
while not eof(f1) do
begin
n:=n+1;
readln(a[n],b[n]);
end;
for i:=1 to n do
writeln(a[i]+b[i]);
close(f1);
readln;
end.