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

sys.setrecursionlimit(500005)
stdin = sys.stdin

ni = lambda: int(ns())
na = lambda: list(map(int, stdin.readline().split()))
ns = lambda: stdin.readline().strip()

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

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

if temperature >= 30:
	print("Yes")
else:
	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):
def prob_A():
    if int(input()) >= 30:
        print('Yes')
    else:
        print('No')

def main():
    prob_A()


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>29):
    print("Yes")
else:
    print("No")

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

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

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

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

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

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

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):
N = int(input().strip())
if(N >= 30):
  print("Yes")
elif(N<30):
  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):
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):
a=input()
if int(a)>=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):
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):
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):
t = int(input())
print("Yes" if 30 <= t else "No")

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

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

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


	
def file():
	sys.stdin = open('input.py', 'r')
	sys.stdout = open('output.py', 'w') 
def get_array():
	l=list(map(int, input().split()))
	return l
def get_2_ints():	
	a,b=map(int, input().split())
	return a,b
def get_3_ints():	
	a,b,c=map(int, input().split())
	return a,b,c	
def sod(n):
	n,c=str(n),0
	for i in n:	
		c+=int(i)
	return c	
def isPrime(n):
    if (n <= 1):
        return False
    if (n <= 3):
        return True
    if (n % 2 == 0 or n % 3 == 0):
        return False
    i = 5
    while(i * i <= n):
        if (n % i == 0 or n % (i + 2) == 0):
            return False
        i = i + 6
  
    return True
def getFloor(A, x):

	(left, right) = (0, len(A) - 1)

	floor = -1
	while left <= right:
		mid = (left + right) // 2
		if A[mid] == x:
			return A[mid]
		elif x < A[mid]:
			right = mid - 1
		else:
			floor = A[mid]
			left = mid + 1
			
	return floor
def floorSqrt(x) : 
  
    
    if (x == 0 or x == 1) : 
        return x 
   
    
    start = 1
    end = x    
    while (start <= end) : 
        mid = (start + end) // 2
          
        
        if (mid*mid == x) : 
            return mid 
              
        
        
        
        if (mid * mid < x) : 
            start = mid + 1
            ans = mid 
              
        else : 
              
            
            end = mid-1
              
    return ans	

def main():
	
		n=int(input())
		
		if(n>=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):
s = int(input())

if s >= 30 :
    print("Yes")

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

Solution (Python):


x = int(input())
if x > 29:
    print("Yes")
else:
    print("No")

Solution (Python):



def solve(n):
    if n >= 30: return "Yes"
    return "No"


if __name__ == "__main__":
    n = int(input())

    print(solve(n))

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):
""" A
    https://atcoder.jp/contests/abc173/tasks/abc173_a
"""
import sys
import math
from functools import reduce
from bisect import bisect_left

def readString():
    return sys.stdin.readline()

def readInteger():
    return int(readString())

def readStringSet(n):
    return sys.stdin.readline().split(" ")[:n]

def readIntegerSet(n):
    return list(map(int, readStringSet(n)))

def readIntegerMatrix(n, m):
    return [lambda _: readIntegerSet(m) for _ in range(0, n)]

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

if __name__ == "__main__":
    _X = readInteger()

    print(main(_X))

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

Solution (Python):
import numpy as np
import sys 

readline = sys.stdin.readline

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):
N=int(input())

print("Yes" if N>=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 = float(input())

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

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

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

Solution (Python):

def main():
    x = int(input())

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


if __name__ ==  "__main__":
    main()

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

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 <= 40 and x >= -40:
    if x >= 30:
        print("Yes")
    else:
        print("No")
else:
    print()

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

if __name__ == '__main__':
    main()

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

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

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

Solution (Python):


def main():
    import sys
    
    X = int( sys.stdin.readline() )
    
    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):
import sys
n = int(sys.stdin.readline().rstrip("\n"))
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())

ans = "No" if x < 30 else "Yes"

print(ans)

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

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


import sys

input = iter(sys.stdin.read().splitlines()).__next__

T = int(input())

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

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

Solution (Python):
degree = float(input())
if degree >= 30.:
    print('Yes')
else:
    print('No')

Solution (Python):
import sys
read = sys.stdin.readline
import time
import math
import itertools as it
def inp():
    return int(input())
def inpl():
    return list(map(int, input().split()))
start_time = time.perf_counter()


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


end_time = time.perf_counter()
print('time:', end_time-start_time, file=sys.stderr)

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

if a >= 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())

ans = 'No'

if x>= 30:
  ans = 'Yes'

print(ans)

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

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):
x = int(input())
temp = 30

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

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

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

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

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):
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("Yes")
    else:
        print("No")  
main()

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

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

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

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

Solution (Python):
temp = int(input())
print("Yes" if temp >= 30 else "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())
print('Yes') if x >= 30 else print('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):
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):

import sys
sys.setrecursionlimit(10**7)
import bisect
import heapq
import itertools
import math
from collections import Counter, defaultdict, deque
from copy import deepcopy
from decimal import Decimal
from math import gcd
from operator import add, itemgetter, mul, xor
def cmb(n,r,mod):
  bunshi=1
  bunbo=1
  for i in range(r):
    bunbo = bunbo*(i+1)%mod
    bunshi = bunshi*(n-i)%mod
  return (bunshi*pow(bunbo,mod-2,mod))%mod
mod = 10**9+7
def I(): return int(input())
def LI(): return list(map(int,input().split()))
def MI(): return map(int,input().split())
def LLI(n): return [list(map(int, input().split())) for _ in range(n)]

x = I()
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('No')
else:
    print('Yes')

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):
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("No")
else:
    print("Yes")

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

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

Solution (Python):
def LI(): return list(map(int, input().split()))
def I(): return map(int, input().split())
mod = 10**9 + 7

def main():
  n = int(input())
  if n < 30:
    print('No')
  else:
    print('Yes')
  
if __name__ == '__main__':
  main()

Solution (Python):
print('Yes' if int(input()) > 29 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):
print('NYoe s'[int(input())>=30::2])

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):
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):
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):
def main():
    X = int(input())

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

if __name__ == "__main__":
    main()

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

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

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

if x >= 30:
    print('Yes')
    exit()

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):


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

if __name__ == '__main__':
    main()

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

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

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

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

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

if __name__ == "__main__":
    resolve()

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):


from math import sqrt, floor, ceil, log10, pi
from fractions import gcd
from itertools import permutations, combinations
from operator import itemgetter
from functools import cmp_to_key


INF=1001001001
__MOD__=(10**9)+7
yn = 'YNeos'
judge = False
cnt = 0
ans = None


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

def intinput():
    return int(input())

def mulinputs():
    return map(int,input().split())

def lineinputs(func=intinput):
    datas = []
    while True:
        try:
            datas.append(func())
        except EOFError:
            break
    return datas

class ModInt():
    def __init__(self, x):
        self.__x = (x % __MOD__)
    def __add__(self, other):
        if type(other) == int:
            other = self.__class__(other)
            return int(self.__class__((self.__x + other.__x)%__MOD__))
        elif type(other) == ModInt:
            return self.__class__((self.__x + other.__x)%__MOD__)
        else:
            raise Exception("Not Int or Not ModInt")
    def __radd__(self, other):
        if type(other) == int:
            other = self.__class__(other)
            return int(self.__class__((other.__x + self.__x)%__MOD__))
        elif type(other) == ModInt:
            return self.__class__((other.__x + self.__x)%__MOD__)
        else:
            raise Exception("Not Int or Not ModInt")

    def __sub__(self, other):
        if type(other) == int:
            other = self.__class__(other)
            return int(self.__class__((self.__x - other.__x)%__MOD__))
        elif type(other) == ModInt:
            return self.__class__((self.__x - other.__x)%__MOD__)
        else:
            raise Exception("Not Int or Not ModInt")
    def __rsub__(self, other):
        if type(other) == int:
            other = self.__class__(other)
            return int(self.__class__((other.__x - self.__x)%__MOD__))
        elif type(other) == ModInt:
            return self.__class__((other.__x - self.__x)%__MOD__)
        else:
            raise Exception("Not Int or Not ModInt")

    def __mul__(self, other):
        if type(other) == int:
            other = self.__class__(other)
            return int(self.__class__((self.__x * other.__x)%__MOD__))
        elif type(other) == ModInt:
            return self.__class__((self.__x * other.__x)%__MOD__)
        else:
            raise Exception("Not Int or Not ModInt")
    def __rmul__(self, other):
        if type(other) == int:
            other = self.__class__(other)
            return int(self.__class__((other.__x * self.__x)%__MOD__))
        elif type(other) == ModInt:
            return self.__class__((other.__x * self.__x)%__MOD__)
        else:
            raise Exception("Not Int or Not ModInt")

    def __truediv__(self, other):
        if type(other) == int:
            other = self.__class__(other)
            return int(self.__class__((self.__x * other.__modinv())%__MOD__))
        elif type(other) == ModInt:
            return self.__class__((self.__x * other.__modinv())%__MOD__)
        else:
            raise Exception("Not Int or Not ModInt")
    def __rtruediv__(self, other):
        if type(other) == int:
            other = self.__class__(other)
            return int(self.__class__((other.__x * self.__modinv())%__MOD__))
        elif type(other) == ModInt:
            return self.__class__((other.__x * self.__modinv())%__MOD__)
        else:
            raise Exception("Not Int or Not ModInt")

    def __pow__(self, other):
        if type(other) == int:
            other = self.__class__(other)
            return int(self.__class__(pow(self.__x, other.__x, __MOD__)))
        elif type(other) == ModInt:
            return self.__class__(pow(self.__x, other.__x, __MOD__))
        else:
            raise Exception("Not Int or Not ModInt")
    def __rpow__(self, other):
        if type(other) == int:
            other = self.__class__(other)
            return int(self.__class__(pow(other.__x, self.__x, __MOD__)))
        elif type(other) == ModInt:
            return self.__class__(pow(other.__x, self.__x, __MOD__))
        else:
            raise Exception("Not Int or Not ModInt")

    def __modinv(self, m=__MOD__):
        a = self.__x
        if a == 0:
            raise ZeroDivisionError()
        if gcd(a, m) != 1:
            raise Exception("%sの逆数は求まりません。" % a)
        b, u, v = m, 1, 0
        while b != 0:
            t = a//b;
            a -= t*b
            a, b = b, a
            u -= t * v
            u, v = v, u
        u %= m
        if u < 0:
            u += m
        return u
    def __int__(self):
        return self.__x
    def __str__(self):
        return str(self.__x)



if __name__ == '__main__':
    N = intinput()

    
    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>29 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):
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):
X = int(input())
ans = 'No'
if X >= 30:
    ans = 'Yes'
print(ans)

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())
print(["No", "Yes"][X >= 30])

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

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):
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):
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):
def main(istr, ostr):
    s = int(istr.readline().strip())
    if s >= 30:
        print('Yes', file=ostr)
    else:
        print('No', file=ostr)


if __name__ == "__main__":
    import sys

    main(sys.stdin, sys.stdout)

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

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')

if __name__ == '__main__':
    main()

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

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

Solution (Python):
X = int(input())
ans = 'Yes'

if X < 30:
    ans = 'No'

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

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

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

Solution (Python):
import sys


def resolve(in_):
    x = int(in_.read())
    return 'Yes' if x >= 30 else 'No'

def main():
    answer = resolve(sys.stdin.buffer)
    print(answer)


if __name__ == '__main__':
    main()

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

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