package main

import (
	"fmt"
)

func main() {
	var s string
	fmt.Scan(&s)
	if len(s) < 1 || len(s) > 32 {
		fmt.Println(400)
		return
	}
	first := s[0]
	last := s[len(s)-1]
	if first == '_' || first == '-' || last == '_' || last == '-' {
		fmt.Println(400)
		return
	}
	for i := 0; i < len(s); i++ {
		c := s[i]
		isValidChar := (c >= 'A' && c <= 'Z') || 
		               (c >= 'a' && c <= 'z') || 
		               (c >= '0' && c <= '9') || 
		               c == '_' || 
		               c == '-'
		
		if !isValidChar {
			fmt.Println(400)
			return
		}
	}
	fmt.Println(200)
}