#!/usr/local/bin/cz --
use b
ulong cstr_to_ulong(cstr s):
	return strtoul(s, NULL, 10)
Main:
	ulong i = 0
	boolean pand
	getargs(ulong, i)
	pand = pan_digital(i)
	say(pand ? "yes" : "no")

boolean pan_digital(ulong i):
	char d[10]
	while i:
		d[i%10]++
		i/=10
	return memchr(d, 0, 10) ? 1 : 0