include[HTML_REMOVED]

int a, b;
int cnt = 0;
int days[13]={0,31,29,31,30,31,30,31,31,30,31,30,31};
int main(){
scanf(“%d %d”, &a, &b);
for(int month = 1; month <= 12; month ){
for(int day = 1; day <= days[month]; day ){
int year = 1000 * (day % 10) + 100 * (day / 10) + 10 * (month % 10) + month / 10;
int date = 10000 * year + 100 * month + day;
if(date >= a && date <= b) cnt ++;
}
}
printf(“%d\n”, cnt);
return 0;
}