#region Header
#!/usr/bin/env python3
# from typing import *

import sys
import io
import math
import collections
import decimal
import itertools
from queue import PriorityQueue
import bisect
import heapq

def input():
    return sys.stdin.readline()[:-1]

sys.setrecursionlimit(1000000)
#endregion

_INPUT = """
"""
sys.stdin = io.StringIO(_INPUT)



def main():
    n = 500
    print(n)

if __name__ == '__main__':
    main()