void F(int x) {
int i;
for (i = 0; i < x; i++)
if (x > 1) {
F(x / 2);
F(x / 2);
}
}
void A1(int n) {
F(n / 5);
F(4 * n / 5);
}
void A2(int n) {
F(2 * n / 5);
F(3 * n / 5);
}
int main()
{
A1(5);
A2(5);
return 0;
}
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