#include<iostream>
using namespace std;
int main()
{
	int m1, d1, m2, d2;
	cin>>m1>>d1>>m2>>d2;
	int month[13]={0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
	int day=0;
	for(int i=m1+1; i<m2; i++)
	{
		day += month[i];
	}
	if(m1==m2) day += (d2-d1+1);
	else
	{
		day += month[m1]-d1+1;
		day += d2;
	}
	day = day-(day/10);
	int price=day*100;

	cout<<price<<endl;

}