1476.java

import java.util.*;

public class Main {

 public static void main(String[] args) {

 Scanner sc = new Scanner(System.in);

 int e = sc.nextInt(); // 1~15
 int s = sc.nextInt(); // 1~28
 int m = sc.nextInt(); // 1~19

 int a=0, b=0, c=0, cnt=0;
 while(!(a==e && b==s && c==m)) {
 a++;
 b++;
 c++;
 cnt++;

 if(a>15)
 a = 1;
 if(b>28)
 b = 1;
 if(c>19)
 c = 1;
 }
 System.out.println(cnt);
 }
}