import java.util.Scanner;

class Yukicoder {
    static public void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int L = scanner.nextInt();
        int M = scanner.nextInt();
        int N = scanner.nextInt();

        if (L < 0 || L > 1000 || M < 0 || M > 1000 || N < 0 || N > 1000) System.exit(1);

        int sum = 100*L + 25*M + 1*N;
        sum = sum%1000;
        L = sum/100;
        sum = sum%100;
        M = sum/25;
        N = sum%25;
        sum = L + M + N;

        System.out.println(sum);
    }
}