I Hate Mondays

import java.util.*;

public class Solution {

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);

        String tgl1 = in.nextLine();
        String tgl2 = in.nextLine();

        String[] token1 = tgl1.split(" ");
        String[] token2 = tgl2.split(" ");
        int[] input1 = new int[token1.length];
        int[] input2 = new int[token2.length];

        for(int i = 0; i < token1.length; i++) {
            input1[i] = Integer.parseInt(token1[i]);
            input2[i] = Integer.parseInt(token2[i]);
        }

        int hari1 = input1[0] + (30 * input1[1]) + (360 * input1[2]);
        int hari2 = input2[0] + (30 * input2[1]) + (360 * input2[2]);

        int lewat = hari2 - hari1;
        if(lewat >= 6480 && (input2[2]-input1[2]) >= 60){
            System.out.println(2160);
        }else if(lewat >= 6480 && (input2[2]-input1[2]) < 60){
            lewat = (lewat-6480) / 7;
            System.out.printf("%d", lewat+1);
        }else {
            System.out.println(0);
        }
    }
}