Problem:
 Score : 100 points    Problem Statement You will turn on the air conditioner if, and only if, the temperature of the room is 30 degrees Celsius or above.  The current temperature of the room is X degrees Celsius. Will you turn on the air conditioner?      Constraints  -40 \leq X \leq 40  X is an integer.         Input Input is given from Standard Input in the following format:  X       Output Print Yes if you will turn on the air conditioner; print No otherwise.        Sample Input 1 25      Sample Output 1 No       Sample Input 2 30      Sample Output 2 Yes

Solution (Python):
import sys
from functools import lru_cache, cmp_to_key
from heapq import merge, heapify, heappop, heappush
from math import *
from collections import defaultdict as dd, deque, Counter as C
from itertools import combinations as comb, permutations as perm
from bisect import bisect_left as bl, bisect_right as br, bisect
from time import perf_counter
from fractions import Fraction



mod = int(pow(10, 9) + 7)
mod2 = 998244353
def data(): return sys.stdin.readline().strip()
def out(*var, end="\n"): sys.stdout.write(' '.join(map(str, var))+end)
def L(): return list(sp())
def sl(): return list(ssp())
def sp(): return map(int, data().split())
def ssp(): return map(str, data().split())
def l1d(n, val=0): return [val for i in range(n)]
def l2d(n, m, val=0): return [l1d(n, val) for j in range(m)]

try:
    
    sys.stdin = open("input.txt", "r")
    sys.stdout = open("../output.txt", "w")
except:
    pass




X=L()[0]
if X>=30:
    print("Yes")
else:
    print("No")

Solution (Python):
x = int(input())
a = "Yes" if x >= 30 else "No"
print(a)

Solution (Python):
a=int(input())
print(a<30 and 'No' or 'Yes')

Solution (Python):
result = 'Yes' if int(input()) >= 30 else 'No'
print(result)

Solution (Python):
x = int(input())
if -40 <= x <= 40:
    [print("Yes") if x >= 30 else print("No")]

Solution (Python):
X = int(input())
if X >= 30:
    print('Yes')
else:
    print('No')

Solution (Python):
x=int(input())
if(x>=30):
    print("Yes")
else:
    print("No")

Solution (Python):
X = int(input())
if X >= 30:
    print("Yes")
else:
    print("No")

Solution (Python):
x = int(input())
if x >= 30: print("Yes")
else: print("No")

Solution (Python):
n = int(input())
if n >= 30:
    print("Yes")
else:
    print("No")

Solution (Python):
print('YNeos'[int(input())<30::2])

Solution (Python):
print('YNeos'[int(input())<30::2])

Solution (Python):
a=int(input())
print('Yes' if a>=30 else 'No')

Solution (Python):
x = int(input())
print('Yes' if x >= 30 else 'No')

Solution (Python):
x = int(input())
if x >=30:
    print("Yes")
else:
    print("No")

Solution (Python):
if int(input()) >= 30:
    print('Yes')
else:
    print('No')

Solution (Python):
n = int(input())
if n >= 30:
  print('Yes')
else:
  print('No')

Solution (Python):
x = int (input())

if 30 <= x:
    print("Yes")

else:
    print("No")

Solution (Python):
x = int(input())
if x >= 30:
  print("Yes")
else:
  print("No")

Solution (Python):
x=int(input())
if x>=30:
  print("Yes")
else:
  print("No")

Solution (Python):
print("Yes" if int(input())>=30 else "No")

Solution (Python):
X=int(input())
if X>29:
    print("Yes")
else:
    print("No")

Solution (Python):
print('Yes' if int(input())>=30 else 'No')

Solution (Python):
print("Yes") if int(input()) >= 30 else print("No")

Solution (Python):

x = int(input())

if x >= 30:
    print("Yes")
else:
    print("No")

Solution (Python):
print('No' if int(input()) < 30 else 'Yes')

Solution (Python):
from math import ceil,sqrt,log,gcd
def ii():return int(input())
def si():return input()
def mi():return map(int,input().split())
def li():return list(mi())
mod=1000000007

x=ii()
if x>=30:
    print('Yes')
else:
    print('No')

Solution (Python):
x = int(input())
if x>=30:
    print("Yes")
else:
    print("No")

Solution (Python):
x = int(input())
if x >= 30:
    print('Yes')
else:
    print('No')

Solution (Python):
X = int(input())
print('Yes' if X>=30 else 'No')

Solution (Python):
t=int(input())
if(t>=30):
  print("Yes")
else:
  print("No")

Solution (Python):
ii = lambda : int(input())
mi = lambda : map(int,input().split())
li = lambda : list(map(int,input().split()))

x = ii()

if x >= 30:
    print('Yes')
else:
    print('No')

Solution (Python):
x=int(input())
if x>=30:
  print("Yes")
else:
  print("No")

Solution (Python):
def main():
  x=int(input())
  if x >= 30 :
    print("Yes")
  else:
    print("No")

main()

Solution (Python):
x=int(input())
ans=0
if 30<=x:
    ans='Yes'
else:
    ans='No'
print(ans)

Solution (Python):

import sys

YES = "Yes"  
NO = "No"  


def solve(X: int):
    if X >= 30:
        print(YES)
    else:
        print(NO)
    return



def main():
    def iterate_tokens():
        for line in sys.stdin:
            for word in line.split():
                yield word
    tokens = iterate_tokens()
    X = int(next(tokens))  
    solve(X)

if __name__ == '__main__':
    main()

Solution (Python):
n=int(input())

if n>=30:
    print("Yes")
else:
    print("No")

Solution (Python):
from __future__ import print_function

import sys
sys.setrecursionlimit(500000)

import re
import array
import copy
import functools
import operator

import math
import string
import fractions
from fractions import Fraction

import collections
import itertools
import bisect

import random
import time

import heapq
from heapq import heappush
from heapq import heappop
from heapq import heappushpop
from heapq import heapify
from heapq import heapreplace
from queue import PriorityQueue as pq
from queue import Queue

from itertools import accumulate

from collections import deque
from collections import Counter

from operator import mul
from functools import reduce

input = sys.stdin.readline


def eprint(*args, **kwargs):
    print(*args, file=sys.stderr, **kwargs)
    return


















def combinations_count(n, r):
    r = min(r, n - r)
    numer = reduce(mul, range(n, n - r, -1), 1)
    denom = reduce(mul, range(1, r + 1), 1)
    return numer // denom


mod=1000000007
def combinations_count_mod(n, r):
    r = min(r, n - r)
    numer = reduce(lambda x,y: x*y%mod, range(n, n - r, -1), 1)
    denom = pow( reduce(lambda x,y: x*y%mod, range(1, r + 1), 1) , mod-2, mod)
    return numer * denom % mod


def main():
    x = int(input().strip())
    if x>=30:
        print("Yes")
    else:
        print("No")

if __name__ == '__main__':
    main()

Solution (Python):
x = int(input())
if x >=30:
  print("Yes")
else:
  print("No")

Solution (Python):
t=int(input())
if(t>=30):
	print("Yes")
else:
	print("No")

Solution (Python):
X = int(input())
if X >= 30:
  print('Yes')
else:
  print('No')

Solution (Python):
X = int(input())
if 30<=X<=40:
    print('Yes')
elif -40<=X<30:
    print('No')
else:
    print('エラー')

Solution (Python):
print('YNeos'[int(input())<30::2])

Solution (Python):
t=int(input())
if t>=30:
  print("Yes")
else:
  print("No")

Solution (Python):
if int(input())<30:
  print('No')
else:
  print('Yes')

Solution (Python):
x=int(input())
if x >= 30:
    print('Yes')
else:
    print('No')

Solution (Python):
temp=int(input())
if temp>=30:
  print("Yes")
else:
    print("No")

Solution (Python):
t = int(input())

if 30 <= t <=40 :
	print("Yes")
if -40 <= t < 30 :
	print("No")

Solution (Python):
N = int(input()) 

if(N >= 30):
        print('Yes')
else:
        print('No')

Solution (Python):
n = int(input())
print("Yes" if n>=30 else "No")

Solution (Python):
n= int(input())
if n >= 30:
    print("Yes")
else:
    print("No")

Solution (Python):
X = input()
X = int(X)

if X >= 30:
  print('Yes')
else:
  print('No')

Solution (Python):
def main():
    x = int(input())
 
    if x >= 30:
        print("Yes")
    else:
        print("No")
main()

Solution (Python):
X=int(input())
if X<30:
  print('No')
else:
  print('Yes')

Solution (Python):
X = int(input())
if X >= 30:
    print('Yes')
else:
    print('No')

Solution (Python):
x = int(input())

if x >= 30:
    print("Yes")
else:
    print("No")

Solution (Python):
def main(N):
    print("Yes" if N >= 30 else "No")


N = int(input())
main(N)

Solution (Python):
t = int(input())

if t >= 30:
  print("Yes")
else:
  print("No")

Solution (Python):
X = input()


if int(X) < 30:
  print('No')
else:
  print('Yes')

Solution (Python):
x = int(input())
if x < 30:
  print('No')
else :
  print('Yes')

Solution (Python):
X = int(input())
if X >= 30:
    print('Yes')
else:
    print('No')

Solution (Python):
X=int(input())
if X>=30:
    print("Yes")
else:
    print("No")

Solution (Python):
X=int(input())
if X>= 30:
    print("Yes")
else:
    print("No")

Solution (Python):
import sys
import math
from collections import defaultdict
from bisect import bisect_left, bisect_right

sys.setrecursionlimit(10**7)
def input():
    return sys.stdin.readline()[:-1]

mod = 10**9 + 7

def I(): return int(input())
def LI(): return list(map(int, input().split()))
def LIR(row,col):
    if row <= 0:
        return [[] for _ in range(col)]
    elif col == 1:
        return [I() for _ in range(row)]
    else:
        read_all = [LI() for _ in range(row)]
        return map(list, zip(*read_all))



X = I()

if X >= 30:
    print('Yes')
else:
    print('No')

Solution (Python):
from sys import stdin
import numpy as np
import sys
import math
n=int(input())
wk = 30
if n >= wk:
  print("Yes")
  sys.exit()
print("No")

Solution (Python):
x = int(input())
if x >= 30:
    print("Yes")
else:
    print("No")

Solution (Python):
a=int(input())
if(a>=30):
    print("Yes")
else:
    print("No")

Solution (Python):
x = int(input())

if x >= 30:
  print('Yes')
else:
  print('No')

Solution (Python):
x = int(input())
if x >= 30:
    print(('Yes'))
else:
    print(('No'))

Solution (Python):
n=int(input())
if n>=30:
  print("Yes")
else:
  print("No")

Solution (Python):
t = int(input())
if t >= 30:
  print("Yes")
else:
  print("No")

Solution (Python):
print("YNeos"[int(input())<30::2])

Solution (Python):
X = int(input())
if X >= 30:
  print("Yes")
else:
  print("No")

Solution (Python):
X = int(input())

if X >= 30:
    print('Yes')
else:
    print('No')

Solution (Python):
from sys import stdin

X = int(stdin.readline().rstrip())
if X >= 30:      
  print('Yes')
else:
  print('No')

Solution (Python):

X = int(input())
if X >= 30:
    print("Yes")
else: print("No")

Solution (Python):
x = (int)(input())

ret = "No"
if x >= 30:
    ret = "Yes"

print("{}".format(ret))

Solution (Python):
import sys

read = sys.stdin.buffer.read
readline = sys.stdin.buffer.readline
readlines = sys.stdin.buffer.readlines

print('Yes' if int(read()) >= 30 else 'No')

Solution (Python):
X = int(input())

if X >= 30:
    print("Yes")
else:
    print("No")

Solution (Python):
if 30<=int(input()):
    print('Yes')
else:
    print('No')

Solution (Python):
n = int(input())
if n >= 30: 
  print("Yes")
else: 
  print("No")

Solution (Python):
t = int(input())
if t>=30:
  print("Yes")
else:
  print("No")

Solution (Python):
def read():
    X = int(input())
    return X

def fun(X):
    if X >= 30:
        return 'Yes'
    else:
        return 'No'


if __name__ == '__main__':
    X = read()
    print(fun(X))

Solution (Python):
x = int(input());
if x >= 30:
    print("Yes");
else:
    print("No");

Solution (Python):
X = int(input())
if X >= 30:
    print('Yes')
else:
    print('No')

Solution (Python):
x = int(input());
if x >= 30:
    print("Yes");
else:
    print("No");

Solution (Python):
X = int(input())

if X >=30:
    print("Yes")
else:
    print("No")

Solution (Python):
x = int(input());
if x >= 30:
    print("Yes");
else:
    print("No");

Solution (Python):
X=int(input())
if X>=30:
  print("Yes")
else:
  print("No")

Solution (Python):
x = int(input())
if x>=30:
  print("Yes")
else:
  print("No")

Solution (Python):
if int(input())>=30:
    print('Yes')
else:
    print('No')

Solution (Python):
n=int(input())
if(n>=30):
  print("Yes")
else:
  print("No")

Solution (Python):
print("Yes" if int(input())>=30 else "No")

Solution (Python):
print("Yes" if int(input()) >= 30 else "No")

Solution (Python):
X = int(input())
if X >= 30:
  print('Yes')
else:
  print('No')

Solution (Python):
N = int(input())
if N>= 30:
    print("Yes")
else:
    print("No")

Solution (Python):
x=int(input())
if x>=30:
    print("Yes")
else:
    print("No")

Solution (Python):
x=int(input())
if x>=30:print("Yes")
else:print("No")

Solution (Python):


import math

import itertools
from collections import deque
from collections import Counter
import heapq
from fractions  import gcd


n=int(input())
if n>=30:
    print("Yes")
else:
    print("No")

Solution (Python):
x = int(input())
if x >= 30:
  print('Yes')
else:
  print('No')

Solution (Python):
print('NYoe s'[int(input())>=30::2])

Solution (Python):
x = int(input())
if x >= 30:
    print("Yes")
else:
    print("No")

Solution (Python):
import sys
import  math
import fractions
from collections import defaultdict
stdin = sys.stdin
     
ns = lambda: stdin.readline().rstrip()
ni = lambda: int(stdin.readline().rstrip())
nm = lambda: map(int, stdin.readline().split())
nl = lambda: list(map(int, stdin.readline().split()))


X=int(input())
print('Yes' if 30<=X else 'No')

Solution (Python):
N= int(input())
if N>=30:
    print('Yes')
else:
    print('No')

Solution (Python):
N = int(input())
if N>= 30:
    print("Yes")
else: 
    print("No")

Solution (Python):
x=int(input())
print("Yes" if x>=30 else "No")

Solution (Python):

import sys

def I(): return int(sys.stdin.readline().rstrip())
def LI(): return list(map(int,sys.stdin.readline().rstrip().split()))
def S(): return sys.stdin.readline().rstrip()
def LS(): return list(sys.stdin.readline().rstrip().split())

X = I()

if X >= 30:
    print("Yes")
else:
    print("No")

Solution (Python):
n = int(input())
if n >= 30:
	print("Yes")
else:
	print("No")

Solution (Python):
X = int(input())
if(X >= 30):
    print('Yes')
else:
    print('No')

Solution (Python):

"""
Created on Sun Aug  2 20:59:10 2020

@author: naoki
"""

X = int(input()) 

if X>=30: 
    print("Yes")
else:
    print("No")

Solution (Python):
x=int(input())
if x>=30:
  print('Yes')
else:
  print('No')

Solution (Python):
X=int(input())
if X>=30:
  c='Yes'
else:
  c='No'
print(c)

Solution (Python):
x = int(input())
if x >= 30:
    print("Yes")
else:
    print("No")

Solution (Python):




temp = int(input())

if temp < 30:
        
    print('No')
else:
    print('Yes')

Solution (Python):
x=int(input())
if x>=30:
  print('Yes')
else:
  print('No')

Solution (Python):
X = int(input())
print('Yes' if X>=30 else 'No')

Solution (Python):
int = int(input())
print("Yes" if int >= 30 else "No")

Solution (Python):
temp = int(input())
if temp >= 30:
  print("Yes")
else :
  print("No")

Solution (Python):
def check():
  X = int(input())
  if X<30:
    return 'No'
  return 'Yes'
print(check())

Solution (Python):
n = int(input())
if (n>=30):
    print("Yes")
else:
    print("No")

Solution (Python):
X = int(input())
if X >= 30:
    print("Yes")
else:
    print("No")

Solution (Python):
x=int(input())
if 30 <= x:
    print('Yes')
else:
    print('No')

Solution (Python):
X = int(input())
if X >= 30:
    print('Yes')
else:
    print('No')

Solution (Python):
import sys
sys.setrecursionlimit(1 << 25)
read = sys.stdin.readline
ra = range
enu = enumerate


def exit(*argv, **kwarg):
    print(*argv, **kwarg)
    sys.exit()


def mina(*argv, sub=1): return list(map(lambda x: x - sub, argv))



def a_int(): return int(read())


def ints(): return list(map(int, read().split()))


def read_col(H):
    '''H is number of rows
    A列、B列が与えられるようなとき
    ex1)A,B=read_col(H)    ex2) A,=read_col(H) 
    ret = []
    for _ in range(H):
        ret.append(list(map(int, read().split())))
    return tuple(map(list, zip(*ret)))


def read_tuple(H):
    '''H is number of rows'''
    ret = []
    for _ in range(H):
        ret.append(tuple(map(int, read().split())))
    return ret


def read_matrix(H):
    '''H is number of rows'''
    ret = []
    for _ in range(H):
        ret.append(list(map(int, read().split())))
    return ret
    


MOD = 10**9 + 7
INF = 2**31  

from collections import defaultdict, Counter, deque
from operator import itemgetter, xor, add
from itertools import product, permutations, combinations
from bisect import bisect_left, bisect_right  
from functools import reduce
from math import gcd


def lcm(a, b):
    
    g = gcd(a, b)
    return a // g * b


print('Yes' if int(input()) >= 30 else 'No')

Solution (Python):
if int(input()) < 30:
    print("No")
else:
    print("Yes")

Solution (Python):
X = int(input())

if (X >= 30):
    print('Yes')
else:
    print('No')

Solution (Python):
x = int(input())

if x >= 30:
    print('Yes')
else:
    print('No')

Solution (Python):
import sys
input = sys.stdin.buffer.readline




def RD(): return sys.stdin.read()
def II(): return int(input())
def MI(): return map(int,input().split())
def MF(): return map(float,input().split())
def LI(): return list(map(int,input().split()))
def LF(): return list(map(float,input().split()))
def TI(): return tuple(map(int,input().split()))


def main():
	x=II()
	print("Yes" if x>=30 else "No")





if __name__ == "__main__":
	main()

Solution (Python):

x=int(input())
if x>=30:print("Yes")
else:print("No")

Solution (Python):
N = int(input())
if N >= 30:
    print("Yes")
else:
    print("No")

Solution (Python):
X=int(input())
if X>=30:
    print('Yes')
else:
    print('No')

Solution (Python):
X=int(input())
if X>=30:
    print("Yes")
else:
    print("No")

Solution (Python):
x = int(input())
if x >= 30:
    print("Yes")
else:
    print("No")

Solution (Python):
val = int(input())
if val>=30:
    print('Yes')
else:
    print('No')

Solution (Python):
T=int(input())

if 30 <= T:
	print("Yes")
else:print("No")

Solution (Python):
if int(input()) >= 30:
    print('Yes')
else:
    print('No')

Solution (Python):
if int(input()) >= 30:
    print("Yes")
else:
    print("No")

Solution (Python):
M=int(input())


if M>=30:
    print("Yes")
else:
    print("No")

Solution (Python):
X = int(input())
if X >= 30:
    print("Yes")
else:
    print("No")

Solution (Python):
X = int(input())
if X>=30:
  print('Yes')
else:
  print('No')

Solution (Python):
x = int(input())
if x >= 30:
    print('Yes')
else:
    print('No')

Solution (Python):
def main():
    x = int(input())
    if x<30:
        print("No")
    else:
        print("Yes")
if __name__ == "__main__":
    main()

Solution (Python):
x = int(input())
print('Yes' if x >= 30 else 'No')

Solution (Python):
X = int(input())
if X >= 30:
  print('Yes')
else:
  print('No')

Solution (Python):
X = int(input())

if X >= 30:
    print("Yes")
else:
    print("No")

Solution (Python):
X = int(input())
if X >= 30:
    print("Yes")
else:
    print("No")

Solution (Python):
x=int(input())
if(x<30):
    print("No")
else:
    print("Yes")

Solution (Python):


x = int(input())

if x>=30:
  print('Yes')
else:
  print('No')

Solution (Python):
X = int(input())
if X >= 30:
    print("Yes")
else:
    print("No")

Solution (Python):

x = int(input())


if x >= 30: print('Yes')
else: print('No')

Solution (Python):
x = int(input(""))

if x >= 30:
    print("Yes")
else:
    print("No")

Solution (Python):
temp = int(input())
if temp < 30:
  print('No')
elif temp >= 30:
  print('Yes')

Solution (Python):
x=input()
x=int(x)
if 30 <= x:
  print( 'Yes' )
else:
  print( 'No' )

Solution (Python):
t=int(input())
if t>=30:
  print("Yes")
else:
  print("No")

Solution (Python):
X = int(input())

if (X >= 30):
    print('Yes')
else:
    print('No')

Solution (Python):
import sys

sys.setrecursionlimit(10 ** 7)
rl = sys.stdin.readline


def solve():
    X = int(rl())
    if 30 <= X:
        print('Yes')
    else:
        print('No')


if __name__ == '__main__':
    solve()

Solution (Python):
x = int(input())

if x >= 30:
  print("Yes")
else:
  print("No")

Solution (Python):
X=int(input())

if X>=30:
    print("Yes")
    exit()

print("No")

Solution (Python):
X = int(input())

if X >= 30:
    print('Yes')
else:
    print('No')

Solution (Python):
X = int(input())
if X >= 30:
  print('Yes')
else:
  print('No')

Solution (Python):
x=input()
X=int(x)
if(X>=30 and X<=40):
  print('Yes')
elif(X>=-40 and X<30):
  print('No')

Solution (Python):
def resolve():
    X = int(input())
    if X >= 30:
        print("Yes")
    else:
        print("No")

resolve()

Solution (Python):
N=int(input())
if N>=30:
    print("Yes")
else:
    print("No")

Solution (Python):
print('Yes' if int(input()) >= 30 else 'No')

Solution (Python):
X=int(input())

if(X >=30):
  print("Yes")
else:
  print("No")

Solution (Python):
a = int(input())

if a >= 30:
    print('Yes')
else:
    print('No')

Solution (Python):
if(int(input())) >= 30:
   print('Yes')
else:
   print('No')

Solution (Python):
def main():
  x = int(input())
  if x >= 30:
    print('Yes')
  else:
    print('No')

if __name__ == '__main__':
  main()

Solution (Python):
x = int(input())
if x>=30:
    print("Yes")
else:
    print("No")

Solution (Python):
A=int(input())
print("Yes") if A>=30 else print("No")

Solution (Python):
x = int(input())
if x>= 30:
  print("Yes")
else:
  print("No")

Solution (Python):
X = int(input())

if X >= 30:
  print('Yes')
else:
  print('No')

Solution (Python):
import numpy as np
import scipy.sparse as sps
import scipy.misc as spm
import collections as col
import functools as func
import itertools as ite
import fractions as frac
import math as ma
import cmath as cma
import copy as cp
import sys
def sinput(): return sys.stdin.readline().strip()
def iinput(): return int(sinput())
def imap(): return map(int, sinput().split())
def fmap(): return map(float, sinput().split())
def iarr(n=0):
    if n: return [0 for _ in range(n)]
    else: return list(imap())
def farr(): return list(fmap())
def sarr(n=0):
    if n: return ["" for _ in range(n)]
    else: return sinput().split()
def adj(n): return [[] for _ in range(n)]
sys.setrecursionlimit(10**7)
MOD = 10**9 + 7; EPS = sys.float_info.epsilon
PI = np.pi; EXP = np.e; INF = np.inf

x = iinput()
flag = x>=30
ans = "Yes" if flag else "No"
print(ans)

Solution (Python):
X = int(input())

if X >= 30:
    print("Yes")
else:
    print("No")

Solution (Python):
X = int(input())

if 30<= X:
  print("Yes")
else:
  print("No")

Solution (Python):
X = int(input())
if X >= 30:
  print("Yes")
else:
  print("No")

Solution (Python):
tmp=int(input())

if 30<=tmp<=40:
    print("Yes")
else:
    print("No")

Solution (Python):
X = int(input())
if X >= 30:
    print("Yes")
else:
    print("No")

Solution (Python):
x = int(input())
if x>=30:
  print("Yes")
else:
  print("No")

Solution (Python):
X = int(input())

if X >= 30:
    print("Yes")
else:
    print("No")

Solution (Python):
print("Yes" if 30 <= int(input()) else "No")

Solution (Python):
X = int(input())
if X >= 30:
    print('Yes')
else:
    print('No')

Solution (Python):
def resolve():
    X = int(input())
    if X>=30:
        print('Yes')
    else:
        print('No')

resolve()

Solution (Python):
X = int(input())
if X >= 30:
    print("Yes")
else:
    print("No")

Solution (Python):
n = int(input())

if n >= 30:
  print("Yes")
else:
  print("No")

Solution (Python):
t=int(input())
if t>=30:
  print("Yes")
else:
  print("No")

Solution (Python):
import sys
sys.setrecursionlimit(10**8)
def ii(): return int(sys.stdin.readline())
def mi(): return map(int, sys.stdin.readline().split())
def li(): return list(map(int, sys.stdin.readline().split()))
def li2(N): return [list(map(int, sys.stdin.readline().split())) for i in range(N)]
def dp2(ini, i, j): return [[ini]*i for i2 in range(j)]





X = ii()

if X >= 30:
    print('Yes')
else:
    print('No')

Solution (Python):
temperature = int(input())

if temperature >= 30:
    print('Yes')
else:
    print('No')

Solution (Python):
Temp = int(input())
if Temp >= 30:
    print("Yes")
else:
    print("No")

Solution (Python):
x = int(input())
if x >= 30:
    print('Yes')
else:
    print('No')

Solution (Python):
x = int(input())
ans = "No"

if x >= 30:
  ans = "Yes"
  
print(ans)

Solution (Python):
n = int(input())

if 30 <= n <= 40:
  print('Yes')
else:
  print('No')

Solution (Python):
N = int(input())

if N >= 30:
    print("Yes")
else:
    print("No")

Solution (Python):
X = int(input())
if X >= 30:
	print('Yes')
else:
  	print('No')

Solution (Python):
x = int(input())
if(x >= 30):
    print("Yes")
else:
    print("No")

Solution (Python):
X = int(input())

if X >= 30:
    print("Yes")
else:
    print("No")

Solution (Python):
X = int(input())

print('Yes') if X >= 30 else print('No')

Solution (Python):
X = int(input())

if (X >= 30):
  print("Yes")
else:
  print("No")

Solution (Python):
temp = int(input())
print('Yes' if temp >= 30 else 'No')

Solution (Python):
x = int(input())

if x >= 30:
  print('Yes')
else:
  print('No')

Solution (Python):
x = int(input())
if x >= 30:
  print("Yes")
else:
  print("No")

Solution (Python):
x=int(input())
if x>=30:
    print("Yes")
else:
    print("No")

Solution (Python):
x = int(input())
if x >= 30:
  print("Yes")
else:
  print("No")

Solution (Python):
X  = int ( input().strip() ) ;
print ( "No" if X < 30 else "Yes" ) ;

Solution (Python):
print("YNeos"[(int(input()) < 30)::2])

Solution (Python):
x = int(input())
if x >= 30:
    print("Yes")
else:
    print("No")

Solution (Python):
from sys import stdin,stdout
X = int(stdin.readline().strip())
if X<30:
	print("No")
else:
	print("Yes")

Solution (Python):
if int(input()) >= 30:
  print('Yes')
else:
  print('No')

Solution (Python):
temparature = int(input())

if temparature >= 30:
    print("Yes")
else:
    print("No")

Solution (Python):
LI = lambda: list(map(int, input().split()))

X = int(input())


def main():
    ans = "Yes" if X >= 30 else "No"
    print(ans)


if __name__ == "__main__":
    main()

Solution (Python):
X = int(input())

if X >= 30:
    print('Yes')
else:
    print('No')

Solution (Python):


import copy
import random
import bisect 
import fractions 
import math
import sys
import collections
from decimal import Decimal 

mod = 10**9+7
sys.setrecursionlimit(mod) 

d = collections.deque()
def LI(): return list(map(int, sys.stdin.readline().split()))

X = int(input())
if X >= 30:
    ans = "Yes"
else:
    ans = "No"

print(ans)

Solution (Python):
import numpy as np
a= float(input())
count = 0


if a>=30:
    print("Yes")
else:
    print("No")

Solution (Python):
x = int(input())
if x >= 30:
    print("Yes")
else:
    print("No")

Solution (Python):
n=int(input())
print("Yes" if n >= 30 else "No")

Solution (Python):
print('Yes' if int(input()) >= 30 else 'No')

Solution (Python):
x = int(input())

if x >= 30:
    print('Yes')
else:
    print('No')

Solution (Python):
x = int(input())

if x >= 30:
    print("Yes")
else:
    print("No")

Solution (Python):
if 30 <= int(input()):
    print("Yes")
else:
    print("No")

Solution (Python):
X = int(input())

ans = "No"
if X >= 30:
  ans = "Yes"
print(ans)

Solution (Python):
x = int(input())
if x >= 30:
    print("Yes")
else:
    print("No")

Solution (Python):
N = int(input())

if N >= 30:
	print('Yes')
else:
	print('No')

Solution (Python):
x=int(input())
if x>=30:
    print('Yes')
else:
    print('No')

Solution (Python):
X = int(input())
if 30 <= X:
  print("Yes")
else:
  print("No")

Solution (Python):
x = int(input())
if x >= 30:
    print("Yes")
else:
    print("No")

Solution (Python):

x = int(input())
if 30 <= x:
    print("Yes")
else:
    print("No")

Solution (Python):
X = int(input())

if X >= 30:
    print('Yes')
else:
    print('No')

Solution (Python):
n = int(input())
if n >= 30:
    print('Yes')
else:
    print('No')

Solution (Python):
print('Yes') if int(input())>=30 else print('No')

Solution (Python):
T=int(input())
if T>= 30:
  print('Yes')
else:
  print('No')

Solution (Python):
X = int(input())

if X>=30:
    print("Yes")
else:
    print("No")

Solution (Python):



x: int = int(input())
if x >= 30:
    print('Yes')
else:
    print('No')

Solution (Python):
from collections import Counter,defaultdict,deque
from heapq import heappop,heappush
from bisect import bisect_left,bisect_right 
import sys,math,itertools,fractions
sys.setrecursionlimit(10**8)
mod = 10**9+7
INF = float('inf')
def inp(): return int(sys.stdin.readline())
def inpl(): return list(map(int, sys.stdin.readline().split()))

n = inp()
print('Yes' if n >= 30 else 'No')

Solution (Python):
x = int(input())
if x >= 30:
    print("Yes")
else:
    print("No")

Solution (Python):
T = int(input())

if T >= 30:
  print('Yes')
else:
  print('No')

Solution (Python):
temp= int(input())

if temp >= 30:
    print('Yes')
else:
    print('No')

Solution (Python):
x = int(input())
if x>=30:
    print("Yes")
else:
    print("No")

Solution (Python):
X = int(input())
if X >= 30:
    print("Yes")
else:
    print("No")

Solution (Python):
X = int(input())

if X>= 30:
    print('Yes')
else:
    print('No')

Solution (Python):
x = int(input())
if(x >= 30):
  print("Yes")
else:
  print("No")

Solution (Python):
x = int(input())
if x>= 30:
  print('Yes')
else:
  print('No')

Solution (Python):
inp = int(input())
if inp >= 30:
  print("Yes")
else:
  print("No")

Solution (Python):


n = int(input())

if n >= 30:
    print("Yes")
else:
    print("No")

Solution (Python):
x=int(input())

if x >= 30:
    print('Yes')
else:
    print('No')

Solution (Python):
if int(input())>=30:
  print("Yes")
else:
  print("No")

Solution (Python):
X=int(input())

if X>=30:
    print("Yes")
else:
    print("No")

Solution (Python):
s = int(input())
if s<30:
  print('No')
else:
  print('Yes')

Solution (Python):
a = int(input())
if a >= 30:
    print('Yes')
else:
    print('No')

Solution (Python):
x=int(input())
if x>=30:
  print("Yes")
  
else:
  print("No")

Solution (Python):
x = int(input())
if x < 30:
  print("No")
else:
  print("Yes")

Solution (Python):
def A(x):
    d = "Yes"
    f = "No"
    if x<30:
        return f
    else:
        return d
x = int(input())
l = A(x)
print(l)

Solution (Python):
n = int(input())
if n >= 30:
    print("Yes")
else:
    print("No")

Solution (Python):
X = int(input())
if X >= 30:
    print("Yes")
else:
    print("No")

Solution (Python):
N = int(input())
if N >= 30:
  print("Yes")
else:
  print("No")

Solution (Python):
print('Yes' if int(input()) >= 30 else 'No')

Solution (Python):

def main():
    tmp = int(input())
    if tmp >= 30:
        print("Yes")
    else:
        print("No")

if __name__ == '__main__':
    main()

Solution (Python):
X = int(input())

if X >= 30:
    print("Yes")
else:
    print("No")

Solution (Python):
X = int(input())
msg = 'Yes' if X >= 30 else 'No'
print(msg)

Solution (Python):
X = int(input())
if X >=30:
    print("Yes")
else:
    print("No")

Solution (Python):
x = int(input())

if x >= 30:
    print("Yes")
else:
    print("No")

Solution (Python):
x = int(input())
if x>=30:
    print("Yes")
else:
    print("No")

Solution (Python):
X=int(input())

if X>=30 :
    print('Yes')
else :
    print('No')

Solution (Python):
x = int(input())
if x >= 30:
  print("Yes")
else:
  print("No")

Solution (Python):
_temp = int(input())
if _temp >= 30:
  print("Yes")
else:
  print("No")

Solution (Python):
x = int(input())
if x >= 30:
  print("Yes")
else:
  print("No")

Solution (Python):
x=int(input())
if(x>=30):
  print('Yes')
else:
  print("No")

Solution (Python):
print("Yes" if int(input())>=30 else "No")

Solution (Python):
t = int(input())

if(t>=30):
    print("Yes")
else:
    print("No")

Solution (Python):
X = int(input())
if 30 <= X:
    print('Yes')
else:
    print('No')

Solution (Python):
x = int(input())

if x >= 30:
  print("Yes")
else:
  print("No")

Solution (Python):
n = int(input())
 
if n >= 30:
  print("Yes")
else:
  print("No")

Solution (Python):
X = int(input())
if X >= 30:
    print('Yes')
else:
    print('No')

Solution (Python):
X = int(input())
if 30 <= X:
    print('Yes')
else:
    print('No')