import java.util.Scanner;

public class Main {
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        
        int L = sc.nextInt();
        int M = sc.nextInt();
        int N = sc.nextInt();
        
        int add_M = (int)N/25;
        int lost_N = N - add_M*25;
        M = M + add_M;
        
        int add_L = (int)M/4;
        int lost_M = M - add_L*4;
        L = L + add_L;
        
        int add_O = (int)L/10;
        int lost_L = L - add_O*10;
        
        System.out.println(lost_N+lost_M+lost_L);
    }
}