What is the final value for x in function f3, in the following Dynamically Scoped example, assuming that function f1 was called with the following parameter values (10, 20)?

var x = 5;

var y = 6;

function f1(p1, p2) {

var x = 10;

var y = 20;

f2(p1, p2);

}

function f2(p1, p2) {

var x = 11;

var y = 21;

f3(x, y);

}

function f3(p1, p2) {

var x = y + p1 + p2;

}