Why the output of this if statement is the last expression, only?

if (2==2) {
  a <- 3+4;
  b <- 3+5;
  c <- 3+6;
  a;
  b;
  c
}

The output is only the “c” variable value:

[1] 9

The R help Control {base} states:

Arguments: expr, cons.expr, alt.expr, x, y
An expression in a formal sense. This is either a simple expression or a so-called compound expression, usually of the form { expr1 ; expr2 }.

How can I get all the three variables (“a”,”b”,”c”) values (7,8,9) in the output?

Thanks in advance