program u15;
var a,b,c:integer;
input_file:text;
output_file:text;
begin
assign(input_file,'input.txt');
reset(input_file);
assign(output_file,'output.txt');
rewrite(output_file);
read(input_file,a);
read(input_file,b);
c:=a+b;
write(output_file,c);
writeln(output_file);
close(output_file);
end.