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):
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 int(input())>=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):
X = int(input())

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

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

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

if X < 30:
    print("No")

else:
    print("Yes")

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())
print("Yes" if x >29 else "No")

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

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

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

Solution (Python):
import sys
read = sys.stdin.read

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

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

Solution (Python):
def check_temp(n: int) -> str:
    return 'Yes' if n >= 30 else 'No'


if __name__ == '__main__':
    print(check_temp(int(input())))

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

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

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

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

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):
import sys
sys.setrecursionlimit(10**7)

def input(): return sys.stdin.readline()[:-1]
mod = 10**9 + 7
def readInt():return int(input())
def readIntList():return list(map(int,input().split()))
def readStringList():return list(input())
def readStringListWithSpace():return list(input().split())
def readString():return input()

x = readInt()
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):
ip = int(input())

if ip >= 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):
d = int(input())

if d >= 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("No")
else:
    print("Yes")

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

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

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

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

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

Solution (Python):
import sys


def solve():
    readline = sys.stdin.buffer.readline
    mod = 10 ** 9 + 7
    x = int(readline())
    print("Yes" if x >= 30 else "No")


if __name__ == '__main__':
    solve()

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

Solution (Python):
print("YNeos"[int(open(0).read())<30::2])

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

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

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

Solution (Python):
import sys, math
from collections import defaultdict, deque, Counter
from bisect import bisect_left, bisect_right
from itertools import combinations, permutations, product
from heapq import heappush, heappop
from functools import lru_cache
input = sys.stdin.readline
rs = lambda: input().strip()
ri = lambda: int(input())
rl = lambda: list(map(int, input().split()))
mat = lambda x, y, v: [[v]*y for _ in range(x)]
ten = lambda x, y, z, v: [mat(y, z, v) for _ in range(x)]
mod = 1000000007
sys.setrecursionlimit(1000000)

X = ri()

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

Solution (Python):
import sys
read = sys.stdin.buffer.read
readline = sys.stdin.buffer.readline
readlines = sys.stdin.buffer.readlines
 
def main():
    x = int(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):
t = int(input())
if t >= 30:
  print('Yes')
else:
  print('No')

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

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


from typing import *
import collections
import functools as fts
import itertools as its
import math
import sys

INF = float('inf')
YES = "Yes"  
NO = "No"  


def solve(X: int):
    return [NO, YES][X >= 30]


def main():

    sys.setrecursionlimit(10 ** 6)

    def iterate_tokens():
        for line in sys.stdin:
            for word in line.split():
                yield word
    tokens = iterate_tokens()
    X = int(next(tokens))  
    print(f'{solve(X)}')


if __name__ == '__main__':
    main()

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

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

Solution (Python):
def main(X):
    if X >= 30:
        return 'Yes'
    else:
        return 'No'

if __name__ == '__main__':
    X = int(input())
    ans = main(X)
    print(ans)

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

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

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

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

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

Solution (Python):
import sys
sys.setrecursionlimit(300000)

def I(): return int(sys.stdin.readline())
def MI(): return map(int, sys.stdin.readline().split())
def MI0(): return map(lambda s: int(s) - 1, sys.stdin.readline().split())
def LMI(): return list(map(int, sys.stdin.readline().split()))
def LMI0(): return list(map(lambda s: int(s) - 1, sys.stdin.readline().split()))
MOD = 10 ** 9 + 7
INF = float('inf')


X = I()

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):
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):
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):
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 >= 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())
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):
A = int(input())

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

Solution (Python):
def main():
    print(['Yes', 'No'][int(input()) < 30])


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):
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>=0:
    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):
def resolve():
    num = int(input())
    if num >= 30:
        print("Yes")
    else:
        print("No")
        
resolve()

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):
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):
temperture = int(input())

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

Solution (Python):
X = input()

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

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

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

Solution (Python):
print('Yes' if int(input()) >= 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):

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

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

Solution (Python):
print(('Yes','No')[int(input())<30])

Solution (Python):
X = int(input())
if (X >= 30) and (X <= 40):
    print("Yes")
else:
    print("No")

Solution (Python):

x = int(input())


if x >= 30:
    print("Yes")
elif x < 30:
    print("No")
else:
    print("エラー")

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

Solution (Python):
def main():
    from sys import stdin

    readline = stdin.readline

    X = int(readline().rstrip())

    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())

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

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

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

Solution (Python):
A=int(input())
if 30<=A:
   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:
  ans = 'Yes'
else:
  ans = 'No'
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):
def main():
    x = int(input())

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


if __name__ == '__main__':
    main()

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

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

Solution (Python):
import sys
def input(): return sys.stdin.readline().rstrip()
def main():
    x = int(input())
    if x >= 30:
        print("Yes")
    else:
        print("No")

if __name__=='__main__':
    main()

Solution (Python):
import sys
def input(): return sys.stdin.readline().rstrip()
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('No')
else:
    print('Yes')

Solution (Python):
situdo = input()
if int(situdo) >= 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())
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):
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:
    ans = 'Yes'
else:
    ans = 'No'

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

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

if d>=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):


N = int(input().split()[0])
ans = "Yes" if N >= 30 else "No"
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('Yes')
else:
    print('No')

Solution (Python):

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

Solution (Python):
import sys
sys.setrecursionlimit(10**7)
def input(): return sys.stdin.readline().rstrip()


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


if __name__ == '__main__':
    main()

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):
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:
    ans = 'Yes'
else:
    ans = 'No'

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

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

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

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

else:
    print("No")

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

if de >= 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 29>x>(-40):
    print('No')
elif x>=30:
    print('Yes')
elif x<-40:
    print('No')
else:
    print('No')

Solution (Python):
x=int(input())
if 29>x>(-40):
    print('No')
elif x>=30:
    print('Yes')
elif x<-40:
    print('No')
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):
def f(input1):
  if input1 >= 30:
    return 'Yes'
  return 'No'

if __name__ == "__main__":
  input1 = int(input())
  print(f(input1))

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):
if int(input()) >=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):
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 __name__ == "__main__":
    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 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):
temp = int(input())
if temp >= 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):
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())

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

Solution (Python):
if int(input())>=30:
  print("Yes")
else:
  print("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):
def main():

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

if __name__ == '__main__':
    print(main())

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

Solution (Python):
import sys

sys.setrecursionlimit(10 ** 6)
input = sys.stdin.readline
from math import floor, sqrt, factorial, hypot, log  
from heapq import heappop, heappush, heappushpop
from collections import Counter, defaultdict, deque
from itertools import accumulate, permutations, combinations, product, combinations_with_replacement
from bisect import bisect_left, bisect_right
from copy import deepcopy
from fractions import gcd
from random import randint


def ceil(a, b): return (a + b - 1) // b


inf = float('inf')
mod = 10 ** 9 + 7


def pprint(*A):
    for a in A:     print(*a, sep='\n')


def INT_(n): return int(n) - 1


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


def MF(): return map(float, input().split())


def MI_(): return map(INT_, input().split())


def LI(): return list(MI())


def LI_(): return [int(x) - 1 for x in input().split()]


def LF(): return list(MF())


def LIN(n: int): return [I() for _ in range(n)]


def LLIN(n: int): return [LI() for _ in range(n)]


def LLIN_(n: int): return [LI_() for _ in range(n)]


def LLI(): return [list(map(int, l.split())) for l in input()]


def I(): return int(input())


def F(): return float(input())


def ST(): return input().replace('\n', '')
import sys
import itertools
import copy


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


    
    
    
    
    

if __name__ == '__main__':
    main()

Solution (Python):
import sys

sys.setrecursionlimit(10 ** 6)
input = sys.stdin.readline
from math import floor, sqrt, factorial, hypot, log  
from heapq import heappop, heappush, heappushpop
from collections import Counter, defaultdict, deque
from itertools import accumulate, permutations, combinations, product, combinations_with_replacement
from bisect import bisect_left, bisect_right
from copy import deepcopy
from fractions import gcd
from random import randint


def ceil(a, b): return (a + b - 1) // b


inf = float('inf')
mod = 10 ** 9 + 7


def pprint(*A):
    for a in A:     print(*a, sep='\n')


def INT_(n): return int(n) - 1


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


def MF(): return map(float, input().split())


def MI_(): return map(INT_, input().split())


def LI(): return list(MI())


def LI_(): return [int(x) - 1 for x in input().split()]


def LF(): return list(MF())


def LIN(n: int): return [I() for _ in range(n)]


def LLIN(n: int): return [LI() for _ in range(n)]


def LLIN_(n: int): return [LI_() for _ in range(n)]


def LLI(): return [list(map(int, l.split())) for l in input()]


def I(): return int(input())


def F(): return float(input())


def ST(): return input().replace('\n', '')


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


if __name__ == '__main__':
    main()

Solution (Python):
import base64
import subprocess
import gzip


exe_bin = b'\x1f\x8b\x08\x00<0J_\x02\xff\xddZi\x93\xb2<\xb3\xfe-\x96K\xa9SV!\xe2V\xb8\x81\xa0(\n\x82\xb2\xc8\x07\x15\xdcw\x1d\xdcQ\x7f\xfb\xcb2\xf7\xc4\x9b\x919\xcfSu\xde\xf3\xe1\xe4\xc3L\x9b\x8bt:I\xa7\xbb\xd3\xc9\xb8XD`H\xf7\xf3\x08\x04\x8a\xf1\x98\x05!\x9e\xcf\xc6\x8f\x9bt\xabbW\xd1\xebn(`S:<\xbc\xb5\xc0\xb7\xf4Z\r*p\xa1X\xcbe\xf9f\xf2\x14\xef\x95\xf4T\x9ceT\x04\xb4xG\xf5\xafU\xa1\xef\xa2\xe0\xf5\x12\xcd|I`\xf0\t\x9bK\rJ\xa5\xcev\xd5;*\xf3\xec\xdd\xdb.\xca\x16\x1cP\xf1\xddv\x91\x84~-\x97\xb2!p.\n\x82\xe2\xb8\xf4\xc2\xc5\x1a\x96\xac-\x07N\x9d\xac\xadS\x01\x17\xf5\xf9\x0c\x19N\x83\xf4\xadR\xec\xb8\xb9\xe8z\r\xb6\xb9L\x08jr\xb4\xab&D\xed3\xe1\xa2\xcc\xd1\x95a\x17\x05\xe6\xc5\x9e\x12\xfb\x0f\x0fA\x883\xcawT\x03=S\x11\x17e7\xb3\xa9\xd6\xf3\x19\xa9\xd8?Y\xad\x1bs\xfaxG\xfd\xce\x85\xe3\xb9R\xd5\x1e\x11\xf4\xafK\xb2\x9c\xb9T\x1d.\xba\x1e\xa7l\xa6\xbf\xcf\xee\x1a=7\xa2.\n\xact\x85^\t5J\t\xa7SR\xd5\xf7YS\xa6\xfb\xea~\xa87w\xb4Y\x87\x94\x15\x1f\x1f\xd6\xec>\x9c~\xadf\xcd\x1e\x84\x04\x80\xae\xd9\xcb\x03\x06\x98R%\x8c\xb6\x01\xfb;\xa2M\x0b\xbec1\xb8\xb8\x97\x12r\xa4w R\xc5\xb6\xd4ah\x9f\xdd\x0c\x99\x8e&$\xd0\x12K\xc4\x9a\xf9\xb3\x91t\x00\xab\xa4\xf6\xbb\x96\xa1\x95\xcfH\xfd\xf7y\x99\x8c\xf0\xd3<\x19\xf2\x95j\xef\xd0F\x8dH\x86\xb1^l\xd7}\x87\x92\xa1\xe0`\xe5\xd9\xd6\x9e*O\x94J@g\xdd\x13\xcd\xf2BY\xf0D\xf7\xd2\x83\xe9y\xa2\xa5!\xba\x8cys6\n\xac\x88\xb1\x94,\xbdC9\xb8\x7f\xb8{\xb6\xb5\xd7\xd2\xb3m\xcd\x886.\x9e\xa8\xec\x9f\xe0\xb4\'g\xb8\xf0\x80\xb1\xe4H=L\xe8-n\xed4\xbb7*H\xd9\x94\x80\xee+\xb8\x8d\nymvuv\xfc5\xb0\xff\xb2\x89\xf8Z<j\xd9\xb4\x91$\xf2<]2U\xaf?\x11\x0e\xe3\xa1O\x89\x92\xfd\x94\xd6\x95k5\xe1\xa0F\x04f\xcd(y\xa9y\r\x17e:\xa3\x91\xd2\xae\x1bP\x1b\xc7\xfe\xf9(\xadk\x99q7V\xdbm\xecO\xd4 Yx\x98\xfc\x9e\r>\x03\xfb\x0c%Z\xc1CbK3u\x17

exe_bin = base64.b85decode(gzip.decompress(exe_bin))

with open("./kyomu", 'wb') as f:
    f.write(exe_bin)

subprocess.run(["chmod +x ./kyomu"], shell=True)
subprocess.run(["./kyomu"], shell=True)

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):
import base64
import subprocess


exe_bin = "e??420s

exe_bin = base64.b85decode(exe_bin)

with open("./exec", 'wb') as f:
    f.write(exe_bin)

subprocess.run(["chmod +x ./exec"], shell=True)
subprocess.run(["./exec"], shell=True)