Multiplication of two number using recursion

#include
#include

int mult(int, int);
int mult(int a, int b)
{
static int mul=0;
if(b!=1)
mult(a,b-1);

return mul+=a;

}

void main(void)
{
int ans=mult(6,9);
printf("%d",ans);
scanf("%d",ans);
}