What does this C snippet output?

1#include <stdio.h>
2void f(void) {
3    int auto_v = 5;
4    static int stat_v = 5;
5    auto_v++;
6    stat_v++;
7    printf("%d %d\n", auto_v, stat_v);
8}
9int main(void) {
10    f();
11    f();
12    return 0;
13}