#include<stdio.h>
#include<string.h>
#include<algorithm>
int a[] = {0, 0, 0, 2, 368, 1010, 2339};
int main()
{
int x, y;
while(scanf("%d%d", &x, &y) == 2)
if(x > y) std::swap(x, y);
printf("%d\n", a[x]);
}
return 0;