package main

import "fmt"

func main() {
	var n string
	num := []int{1, 0, 0, 0, 1, 0, 1, 0, 2, 1}
	fmt.Scan(&n)
	m := []byte(n)
	ans := 1 + len(m)*2
	for _, b := range m {
		// fmt.Println("b", b)
		k := int(b - 48)
		// fmt.Println(k)
		// fmt.Println(num[k])
		ans += num[k]
	}
	fmt.Println(ans)
}