void F0(out vec2 l0);
void F0(out vec2 l0) {
int l1 = 0;
int l2 = 0;
l1 = 0;
l1 = (l1) + (1);
l2 = 1;
l2 = (l2) - (1);
l0 = vec2(l1, l2);
return;
}