#include <stdio.h>
using namespace std;
int foo(int b){
static int x = 0;
if( b == 10)
{
printf("%d\n", x);
return 10;}
b++;
x++;
return foo(b);}
main(){
int a = 5;
int y = foo(a);
printf("%d\n", y);
printf("%d\n", a);
}
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