#!/usr/bin/python3
from sys import argv;
import sys;
#Jason Cariaga
#171001720
#done using Python 3.8
import hashlib
import random
import string
import time


x = int('0000000000110001010111111111010001001101011000010000100100010011101100101111111011111000111001000111100101111100111001000101100101100011010101001000010111010001100100100011110000100100110110111100000000111101110001011000111001000111010110111010100001110111', 2)

print(x)
nbits = 7
check = pow(2, 256-nbits)
print(check)

if(x < check):
	print("Valid")
else:
	print("Nah")