package main

import "fmt"

func main() {
	var n int
	fmt.Scan(&n)
	ans := 0
	for t := 0; t/5 <= n; t++ {
		for g := 0; g <= t; g++ {
			for p := 0; p/3 <= n; p++ {
				if 5*t+2*g+3*p == n {
					ans++
				}
			}
		}
	}
	fmt.Println(ans)
}