include[HTML_REMOVED]
include[HTML_REMOVED]
using namespace std;
int m[13] = {0 ,31 ,28 ,31 ,30 ,31 ,30 ,31 ,31 ,30 ,31 , 30 ,31};
bool check(int num)
{
string date = to_string(num);
for(int i = 0 , j = 7 ; i[HTML_REMOVED] m[mon])
{
mon;
day = 1;
}
if(mon == 13)
{
mon = 1 ;
year;
}
int date = year * 10000 + mon * 100 + day;
return date;
}
int main()
{
int date1 , date2;
cin>>date1>>date2;
int ans = 0;
for(int i = date1 ; i<= date2 ;)
{
if(check(i)) ans++;
i = newdate(i);
}
cout<<ans;
return 0;
}