var
a : real;
b,c,d : integer;
begin
write('b=');
readln(b);
write('c=');
readln(c);
write('d=');
readln(d);
a := b + c/d;
writeln('a =', a:5:2);
end.
var
a : real;
b,c,d : integer;
begin
write('b=');
readln(b);
write('c=');
readln(c);
write('d=');
readln(d);
a := b + c/d;
writeln('a =', a:5:2);
end.