#include <math.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <assert.h>
#include <limits.h>
#include <stdbool.h>
int main() {
    int p;
    int d;
    int m;
    int s;
    scanf("%d %d %d %d", &p, &d, &m, &s);
    int i, sum = s, count = 0;
    if(sum % 2 != 0){
        count++;
    }
    for(i = 0; i < sum; i++){
        if(p == 6){
            p = 6;
        }
        sum = s - p;
        s = sum;
        p = s - d;
        if(p == 8 || p == 7){
            p = 6;
        }
        count = count + 2;

    }
    printf("%d", count);
    return 0;
}