#include <stdio.h>
#include <unistd.h>
int function(int x) {
if (x == 0) // breakpoint 1
return x;
if ((x % 2) != 0)
return x;
else
return function(x - 1) + x;
}
int main(int argc, char const *argv[]) {
int n = function(2);
return n;
}