package main

import (
	"fmt"
)

func resolve(L, M, N int) int {
	M += N / 25
	N = N % 25

	L += M / 4
	M = M % 4

	L = L % 10

	return L + M + N
}

func main() {
	var L, M, N int
	fmt.Scanf("%d\n%d\n%d\n", &L, &M, &N)
	fmt.Println(resolve(L, M, N))
}