float foo (float a, float b, float c) {
	return a+b+c;
}
float bar (float a, float b) {
	float c = a*b;
	return foo (a, b, c);
}
float har (float a) {
	float b = sqrt(a);
	float c = sqrt(b);
	return bar (a, b) + c;
}
void main ()
{
	gl_Position = vec4(har(gl_Vertex.x));
}