var a,b:integer;
Begin
read(a,b);
if ((a>b) and (a mod b = 0))
or ((b>a) and (b mod a = 0)) then writeln(a+b)
else writeln(a-b);
End.
var
a, b:integer;
begin
write('a = '); readln(a);
write('b = '); readln(b);
if a < b then
a := a + b;
b := a - b;
a := a - b;
end;
if a mod b = 0 then
writeln('a + b = ', a + b)
else
writeln('a / b = ', a / b);
end.
var a,b:integer;
Begin
read(a,b);
if ((a>b) and (a mod b = 0))
or ((b>a) and (b mod a = 0)) then writeln(a+b)
else writeln(a-b);
End.
var
a, b:integer;
begin
write('a = '); readln(a);
write('b = '); readln(b);
if a < b then
begin
a := a + b;
b := a - b;
a := a - b;
end;
if a mod b = 0 then
writeln('a + b = ', a + b)
else
writeln('a / b = ', a / b);
end.