Problem:
 Score : 100 points    Problem Statement An uppercase or lowercase English letter \alpha will be given as input.
If \alpha is uppercase, print A ; if it is lowercase, print a .      Constraints  \alpha is an uppercase ( A - Z ) or lowercase ( a - z ) English letter.         Input Input is given from Standard Input in the following format:  α       Output If \alpha is uppercase, print A ; if it is lowercase, print a .        Sample Input 1 B      Sample Output 1 A  B is uppercase, so we should print A .       Sample Input 2 a      Sample Output 2 a  a is lowercase, so we should print a .

Solution (Python):
a = input()
ans = False
s = "abcdefghijklmnopqrstuvwxyz"
for i in range(26):
    if a == s[i]:
        ans = True
        print("a")
        break
if ans is False:
    print("A")

Solution (Python):
str = input()
if(str.isupper()):
    print("A")
else:
    print("a")
quit()

Solution (Python):
str = input()
if(str in str.upper()):
    print("A")
else:
    print("a")

Solution (Python):
a = input()
if a.isupper():
    print("A")
else:
    print("a")

Solution (Python):
alp = input()
if str.isupper(alp):
    print('A')
else:
    print('a')

Solution (Python):

import collections
import sys
import copy
import re


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())


def main():
    s = S()
    if s.isupper():
        print("A")
    else:
        print("a")


if __name__ == '__main__':
    main()

Solution (Python):
m = input()
S = 0
if m.isupper():
    S = "A"
elif m.islower():
    S = "a"
    
print(S)

Solution (Python):
a = input()
if a.islower():
    print("a")
else:
    print("A")

Solution (Python):
x = input()
if x.islower():
    print("a")
else:
    print("A")

Solution (Python):
S = input()
print('a' if S.islower() else 'A')

Solution (Python):
s=input()
if s.isupper()==True:
    print('A')
else:
    print('a')

Solution (Python):
S=str(input())
if ord(S) <=90:
    print("A")
else:
    print("a")

Solution (Python):
a = input()
if a.isupper():
    print('A')
else:
    print('a')

Solution (Python):
x=input()

if 'A' <= x and  x <= 'Z':
    print('A')
else :
    print('a')

Solution (Python):
def func(x):
  if ord(x) - ord('a') >= 0:
    print('a')
  else:
    print('A')


def main():
  letter = input()
  func(letter)
  
  


if __name__ == '__main__':
  main()

Solution (Python):
s = input()

for i in s:
	if i == i.upper():
		print('A', end='')
	else:
		print('a', end='')

Solution (Python):
a = str(input())
 
if a == a.upper():
  print("A")
else:
  print("a")

Solution (Python):
a=input()
print("aA"[a.isupper()])

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

if a.isupper() == True:
    print("A")
else:
    print("a")

Solution (Python):
I=input()
I1=(I.upper())
if I==I1:
    print("A")
else :
    print("a")

Solution (Python):
s = input()

if str.isupper(s):
    print("A")
else:
    print("a")

Solution (Python):
def main():
    import sys
    def input(): return sys.stdin.readline().rstrip()
    a = input()
    if a.upper() == a:
        print('A')
    else:
        print('a')


if __name__ == '__main__':
    main()

Solution (Python):
s = input()

lower = set(['a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q',\
             'r','s','t','u','v','w','x','y','z'])

if s in lower:
  print('a')
else:
  print('A')

Solution (Python):
a=input()
if ord(a)>95:
    print("a")
else:
    print("A")

Solution (Python):
c = input()
print('A' if c.isupper() else 'a')

Solution (Python):
alpha=input()
if alpha>="A" and alpha<="Z":
  print("A")
if alpha>="a" and alpha<="z":
  print("a")

Solution (Python):
alpha = input()
print("A" if alpha.isupper() else "a")

Solution (Python):
a = input()
if(a == a.upper()):
    print("A")
else:
    print("a")

Solution (Python):
import numpy as np
import sys
import math
import itertools
import collections

a = input()

if a.isupper():
    print("A")
else:
    print("a")

Solution (Python):
n = str(input())
if str.isupper(n) == True :
  print("A")
else:
  print("a")

Solution (Python):
X = input()
if X.isupper():
    print("A")
else:
    print("a")

Solution (Python):
print('A' if input().isupper() else 'a')

Solution (Python):
A = input()
if A.isupper():
    print('A')
else:
    print('a')

Solution (Python):
a=input()
if a.islower():
    print("a")
else:
    print("A")

Solution (Python):









import os
import sys




def main():
    alpha = input()
    if alpha.islower():
        print("a")
    else:
        print("A")


if __name__ == "__main__":
    main()

Solution (Python):
α = input()


if α == α.upper():
    print("A")
else:
    print("a")

Solution (Python):
a = input()
if a.islower():
  print('a')
else:
  print('A')

Solution (Python):
t = input()

if t.isupper()==True:
    print("A")
else:
    print("a")

Solution (Python):
s=input()

l="abcdefghijklmnopqrstuvwxyz"
if s in l:
    print("a")
else:
    print("A")

Solution (Python):
α=input()

if α.isupper()==True:
  print("A")
else:
  print("a")

Solution (Python):
c = input()
if 'A' <= c and c <= 'Z':
    print('A')
else:
    print('a')
c = input

Solution (Python):
a = input()
k = "abcdefghijklmnopqrstuvwxyz"
o = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
for i in range(len(a)):
    if a[i] in k:
        print("a")
    if a[i] in o:
        print("A")

Solution (Python):
X =input()
if X.islower():
    print("a")
else:
    print("A")

Solution (Python):
S = input()
if S.isupper():
    print("A")
else:
    print("a")

Solution (Python):
text = input()
a = True
if text.isupper() == a:
  print('A')
else:
  print('a')

Solution (Python):
a=input()
if a.isupper()==True:
    print("A")
else:
    print("a")

Solution (Python):


n = input()
if n.istitle():
    print("A")
else:
    print("a")

Solution (Python):
import re
char = input()

if re.match('[a-z]', char):
    print('a')

if re.match('[A-Z]', char):
    print('A')

Solution (Python):
A=str(input())
n= ord(A)
if 65 <= n <=90:
  print("A")
else:
  print("a")

Solution (Python):
a = input()

if a.isupper():
    print('A')
else:
    print('a')

Solution (Python):
x = input(str())
X = x.isupper()
if X == True:
    print("A")
else:
    print("a")

Solution (Python):
a = input()
t = 1
b =["q","a","z","w","s","x","e","d","c","r","f","v","t","g","b","y","h","n","u","j","m","i","k","p","o","l"]
for i in range(26):
  if a == b[i]:
    print("a")
    t = 0
    break
if t == 1:
  print("A")

Solution (Python):
s = input()
if s.isupper():
    print('A')
else:
    print('a')

Solution (Python):
a = input()

if a.islower():
    print('a')
else:
    print('A')

Solution (Python):
word = input()
if word.islower():
  print('a')
else:
  print('A')

Solution (Python):
M =  input()
B = ("Q","W","E","R","T","Y","U","I","O","P","A","S","D","F","G","H","J","K","L","Z","X","C","V","B","N","M")
if M in B:
    print('A')
else:
    print('a')

Solution (Python):
a = input()
if a.isupper():
    print('A')
else:
    print('a')

Solution (Python):
a = str(input())
oomoji = ["ABCDEFGHIJKLMNOPQRSTUVWXYZ"]
komoji = ["abcdefghijklmnopqrstuvwxyz"]

if a.isupper():
    print("A")
else:
    print("a")

Solution (Python):
a = input()

if a.isupper():
  print( "A" )
else:
  print("a")

Solution (Python):
import string
big = string.ascii_uppercase
small = string.ascii_lowercase
moji = input()
if moji in big:
    print("A")
else:
    print("a")

Solution (Python):
print('a' if ord(input()) > 90 else 'A')

Solution (Python):
import sys
from io import StringIO
import unittest


def resolve():
    s = input()
    
    
    

    if s.islower():
        print('a')
    else:
        print('A')


class TestClass(unittest.TestCase):
    def assertIO(self, input, output):
        stdout, stdin = sys.stdout, sys.stdin
        sys.stdout, sys.stdin = StringIO(), StringIO(input)
        resolve()
        sys.stdout.seek(0)
        out = sys.stdout.read()[:-1]
        sys.stdout, sys.stdin = stdout, stdin
        self.assertEqual(out, output)

    def test_入力例_1(self):
        input = """B"""
        output = """A"""
        self.assertIO(input, output)

    def test_入力例_2(self):
        input = """a"""
        output = """a"""
        self.assertIO(input, output)


if __name__ == "__main__":
    
    resolve()

Solution (Python):
t = input()

if str.isupper(t):
    print("A")
else:
    print("a")

Solution (Python):
moji = input()
if moji.isupper():
    print("A")
else:
    print("a")

Solution (Python):
def main():
    args = input().rstrip()
    if(args[0].isupper()):
        print('A')
    else:
        print('a')
    
if __name__ == "__main__":
    main()

Solution (Python):
input = str(input())

if(input == str.upper(input)):
  print ('A')
else:
  print ('a')

Solution (Python):
s = input().isupper()
if s == True:
  print("A")
else:
  print("a")

Solution (Python):
a1 = input()
pp = ['a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z']
ppp= ['A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z']
n = len(pp)
if a1 in pp:
  print('a')
else:
  print('A')

Solution (Python):
alpha = input()

if(alpha == alpha.upper()):
    print("A")
else:
    print("a")

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

if a.isupper():
  print("A")
else:
  print("a")

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

if X.isupper():
    print('A')
else:
    print('a')

Solution (Python):

alphabet = 'abcdefghijklmnopqrstuvwxyz'

a = input()

if a in alphabet:
    print('a')
else:
    print('A')

Solution (Python):
a = str(input())
if a.isupper():
  print("A")
else:
  print("a")

Solution (Python):
ch=input()
if(ch.isupper()):
  print('A')
else:
  print('a')

Solution (Python):
a=input()
li=["q","w","e","r","t","y","u","i","o","p","a","s","d","f","g","h","j","k","l","z","x","c","v","b","n","m"]
if a in li:
  print("a")
else:
  print("A")

Solution (Python):
str = input()
if str.islower() == True:
  print('a')
else:
  print('A')

Solution (Python):
a = input()
if a.isupper():
    print("A")
else:
    print("a")

Solution (Python):
if input().isupper():
    print("A")
else:
    print("a")

Solution (Python):
a = input()
if a in 'abcdefghijklmnopqrstuvwxyz':
  print('a')
else:
  print('A')

Solution (Python):
a =input()
if(a.islower()):
    print("a")
else:
    print("A")

Solution (Python):
N = input()

if N.islower():
    print("a")
else:
    print("A")

Solution (Python):
a = input()
if a.isupper():
    print("A")
else:
    print("a")

Solution (Python):
str = input().strip()
f=str.islower()
if f==True:
    print("a")
else:
    print("A")

Solution (Python):
s = input()

if s.isupper():
  print("A")
else:
  print("a")

Solution (Python):
s = input()
if s.isupper():
  print('A')
else:
  print('a')

Solution (Python):
a=input()
if(a.isupper()==True):
    print("A")
else:
    print("a")

Solution (Python):
x=input()
if x.isupper()==True:
    print('A')
else:
    print('a')

Solution (Python):
import sys

a = sys.stdin.read()
a.strip()
if a.islower():
  print('a')
else:
  print('A')

Solution (Python):
def _main(a):
    code = a.encode("ASCII")
    if "A".encode("ASCII") <= code <= "Z".encode("ASCII"):
        print("A")
    else:
        print("a")


if __name__ == "__main__":
    _main(str(input()))

Solution (Python):
def resolve():
	a = input()
	if a == a.upper():
		print('A')
	else:
		print('a')
resolve()

Solution (Python):
s = input()
alpha = ["q","w","e","r","t","y","u","i","o","p","a","s","d","f","g","h","j","k","l","z","x","c","v","b","n","m"]
if s in alpha:
    print("a")
else:
    print("A")

Solution (Python):
a = input()
if a.islower():
    print('a')
else:
    print('A')

Solution (Python):
import sys

input = sys.stdin.readline

n = input().rstrip()

if 'A' <= n <= 'Z':
  print("A")
  
elif 'a' <= n <= 'z':
  print('a')

Solution (Python):
x=input()
y=x.upper()
if x==y:
    print("A")
else:
    print("a")

Solution (Python):

A = input()



N = A.isupper()



if N == True:
    print("A")
else :
    print("a")

Solution (Python):
a = input()

if a == 'A' or a == 'B' or a == 'C' or a == 'D' or a == 'E' or a == 'F' or a == 'G' or a == 'H' or a == 'I' or a == 'J' or a == 'K' or a == 'L' or a == 'M' or a == 'N' or a == 'O' or a == 'P' or a == 'Q' or a == 'R' or a == 'S' or a == 'T' or a == 'U' or a == 'V' or a == 'W' or a == 'X' or a == 'Y' or a == 'Z':
  print('A')
else:
  print('a')

Solution (Python):
s=input()
if ord(s)>=97:
  print("a")
else:
  print("A")

Solution (Python):
S = input()
if S.islower():
  print("a")
else:
  print("A")

Solution (Python):
def resolve():
    a = input()
    if a.isupper() == True:
        print("A")
    else:
        print("a")
        
resolve()

Solution (Python):
str = input().rstrip()
x = ord(str[0])

if ord('A') <= x and x <= ord('Z'):
    print('A')
else:
    print('a')

Solution (Python):
A = input()
if A.isupper():
	print('A')
else:
	print('a')

Solution (Python):
s = input()
if s == s.upper():
	print("A")
else:
	print("a")

Solution (Python):

print(['A', 'a'][ord(input()) >= 97])

Solution (Python):
S = input()

if S.isupper() == True:
    print("A")
else:
    print("a")

Solution (Python):
a = input()
if a.islower():
    print("a")
else:
    print("A")

Solution (Python):
n = input()
if n==n.lower():
    print("a")
    exit()
print("A")

Solution (Python):
oo='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
ko='abcdefghijklmnopqrstuvwxyz'
x=input()
if x in ko:
    print('a')
elif x in oo:
    print('A')

Solution (Python):
a = input()
b = a.islower()

if b == True:
  print("a")
else:
  print("A")

Solution (Python):
strs = input()
if strs.isupper():
    print("A")
else:
    print("a")

Solution (Python):
a = input()

if a.isupper() == True:
    print("A")
else:
    print("a")

Solution (Python):


an = str(input())

if an <= "Z":
    print("A")
else:
    print("a")

Solution (Python):
alpha=input()
if ord(alpha)>=97:
	print('a')
else:
	print('A')

Solution (Python):
n=input()
if n.isupper():
    print("A")
else:
    print("a")

Solution (Python):
s=input()
if s.islower():
    print('a')
else:
    print('A')

Solution (Python):
a = input()

if a.isupper() == True:
    print('A')
else:
    print('a')

Solution (Python):
a = str(input())
if a == "A" or a == "B" or a == "C" or a == "D" or a == "E" or a == "F" or a == "G" or a == "H" or a == "I" or a == "J" or a == "K" or a == "L" or a == "M" or a == "N" or a == "O" or a == "P" or a == "Q" or a == "R" or a == "S" or a == "T" or a == "U" or a == "V" or a == "W" or a == "X" or a == "Y" or a == "Z":
    print("A")
else:
    print("a")

Solution (Python):
s=input()
a=["a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z"]
if s in a:
    print("a")
else:
    print("A")

Solution (Python):
a = input()
ans = a.isupper()
if ans == True:
  print("A")
else:
  print("a")

Solution (Python):
a = input()

if(a.isupper()):
  print("A")
else:
  print("a")

Solution (Python):
n = (input())
if n.islower():
    print("a")
else:
    print("A")

Solution (Python):
alphabet = input()
if alphabet.islower():
  print('a')
else:
  print('A')

Solution (Python):
str = input()
if str.islower():
  print('a')
else:
  print('A')

Solution (Python):
a = input()

if a == a.upper():
    print("A")
else:
    print("a")

Solution (Python):
s=input()

if((s>='A' and s<='Z')):
  print('A')
else:
  print('a')

Solution (Python):
a=input()

if 97<=ord(a)<=122:
    print("a")
else:
    print("A")

Solution (Python):
S=input()
capital="ABCDEFGHIJKLMNOPQRSTUVWSYZ"
if S in capital:
    print("A")
else:
    print("a")

Solution (Python):
s = input()
if(s.isupper()):
  print("A")
else:
  print("a")

Solution (Python):
c = open(0).read().strip()
if 'a' <= c <= 'z':
    print('a')
else:
    print('A')

Solution (Python):
dic = ["a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z"]
s = input()
if s in dic:
  print("a")
else:
  print("A")

Solution (Python):
a = input()
if a.isupper() == False:
  print('a')
else:
  print('A')

Solution (Python):
alpha = input()
if ord('A') <= ord(alpha) <= ord('Z'):
  print('A')
else:
  print('a')

Solution (Python):
a :str  = input()
r = 'a'
if a.isupper():
    r = 'A'
print(r)

Solution (Python):
Alp = ord(input())
if Alp >= 65 and Alp <=90:
    print("A")
elif Alp >= 97 and Alp <= 122:
    print("a")

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

Cap = ['A', 'B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z']

if a in Cap:
  print('A')
else:
  print('a')

Solution (Python):
s = input()
iChr = s[0]

if (iChr.isupper()) :
    print('A')
    exit()
print('a')

Solution (Python):
a=input()
if a==a.upper():
  print("A")
else:
  print("a")

Solution (Python):
L = [chr(ord('a') + i) for i in range(26)]
U = [chr(ord('A') + i) for i in range(26)]
 
a = input()
if a in U:
    print('A')
if a in L:
    print('a')

Solution (Python):
import string
s = input()

if s in string.ascii_uppercase:
    print('A')
if s in string.ascii_lowercase:
    print('a')

Solution (Python):
n = input()
if n.isupper():
  print("A")
elif n.islower():
  print("a")

Solution (Python):
a = input()
if a.isupper()== True :
    print('A')
else :
    print('a')

Solution (Python):
k= str(input())

if k.isupper()==True:
  print("A")
else:
  print("a")

Solution (Python):
a = input()
if a.islower():
  print("a")
else:
  print("A")

Solution (Python):
import string
alpha = input()



if alpha in string.ascii_lowercase:
  print('a')
else:
  print('A')

Solution (Python):
A = input()
if A.islower():
    print('a')
else:
    print('A')

Solution (Python):
import re
txt=input()
x = re.search("[A-Z]", txt)
if(x):
  print("A")
else:
  print("a")

Solution (Python):
X = input()
if X.isupper():
  print('A')
else:
  print('a')

Solution (Python):
a = input()
if str.isupper(a):
    print('A')
else:
    print('a')

Solution (Python):
_letter = input()
if _letter.islower():
  print("a")
else:
  print("A")

Solution (Python):
a = input()
l = ["A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z"]
s = ["a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z"]
if a in l:
    print("A")
elif a in s:
    print("a")

Solution (Python):
def main():
    alpha = input()
    answer = solve(alpha)
    print(answer)


def solve(alpha):
    return 'A' if alpha.isupper() else 'a'


if __name__ == "__main__":
    main()

Solution (Python):
letter = str(input())
if str.isupper(letter) == True:
  print('A')
else:
  print('a')

Solution (Python):
alpha = input()
if alpha.isupper():
  print("A")
else:
  print("a")

Solution (Python):
def main():
  hui = input()
  
  if hui.isupper():
    print('A')
  else:
    print('a')
    
main()

Solution (Python):
import sys

def II(): return str(input())
def MI(): return map(int,input().split())
def LI(): return list(map(int,input().split()))
def TI(): return tuple(map(int,input().split()))
def RN(N): return [input().strip() for i in range(N)]


def main():
    a = II()
    if a.islower() :
        print("a")
    else:
        print("A")

    
if __name__ == "__main__":
	main()

Solution (Python):
lit=input()
list1={'q','w','e','r','t','y','u','i','o','p','a','s','d','f','g','h','j','k','l','z','x','c','v','b','n','m'}
if lit in list1:
  print('a')
else:
  print('A')

Solution (Python):
alpha = input()
if alpha.isupper():
  print('A')
else:
  print('a')

Solution (Python):

if __name__ == "__main__":
    a = input()
    if a.islower():
        ret = "a"
    else:
        ret = "A"
    print(ret)

Solution (Python):
x = input()
if x.isupper() == True:
    print("A")
else:
    print("a")

Solution (Python):
s=input()

if s in "abcdefghijklmnopqrstuvwxyz":
  print("a")
else:
  print("A")

Solution (Python):
ostr = input()
cstr = ostr.upper()

if ostr == cstr:
        print("A")
else:
        print("a")

Solution (Python):
α=input()
abc=["a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z"]
if α in abc:
  print("a")
else:
  print("A")

Solution (Python):
alpha = input()

if ord(alpha) >= 65 and ord(alpha) <= 90:
    print("A")
else:
    print("a")

Solution (Python):
a= input()

if a.isupper() is True:
    print('A')
else:
    print('a')

Solution (Python):
char = input()

if str.isupper(char):
  print('A')
else:
  print('a')

Solution (Python):
a = input()

if a.isupper():
    print('A')
else:
    print("a")

Solution (Python):
s = input()
if str.isupper(s) == True:
    print('A')
else:
    print('a')

Solution (Python):
s = input()
if ord(s) in range(ord('a'), ord('z')+1):
  print("a")
else:
  print("A")

Solution (Python):
a = str(input())
up = range(ord('A'), ord('Z')+1)
down = range(ord('a'), ord('z')+1)

if ord(a) in up:
    print('A')
else:
    print('a')

Solution (Python):
A="ABCDEFGHIJKLMNOPQRSTUVWXYZ"
a="abcdefghijklmnopqrstuvwxyz"
c=input()
flag=0
for val in A:
    if val==c:
        flag=1
        print("A")

if flag==0: print("a")

Solution (Python):
A=input()
CAPS=[c for c in 'ABCDEFGHIJKLMNOPQRSTUVWXYZ']
def main(c):
  if c in CAPS:
    return 'A'
  else:
    return 'a'
  
print(main(A))

Solution (Python):
alpha = input()

Latter = ['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J',
          'K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z']

if alpha in Latter:
  print('A')
else:
  print('a')

Solution (Python):
alp=str(input())
if alp.isupper()==True:
  print('A')
else:
  print('a')

Solution (Python):
s = str(input())
print('A' if s.isupper() else 'a')

Solution (Python):
a = input()
if a.islower():
    print('a')
else:
    print('A')

Solution (Python):
a = input()

if a in 'ABCDEFGHIJKLMNOPQRSTUVWXYZ':
    print('A')
else:
    print('a')

Solution (Python):
if __name__=="__main__":
    
    x = input()
    if x == x.upper():
        print("A")
    else:
        print("a")

Solution (Python):


a = str(input())

if a.isupper():
    print('A')
else:
    print('a')

Solution (Python):
a = input()

if a.isupper():
    print("A")
else:
    print("a")

Solution (Python):
s = str(input())

if 65 <= ord(s) and ord(s) < 91:
    print('A')
else:
    print('a')

Solution (Python):
a = input()

if a.isupper():
    print("A")
else:
    print("a")

Solution (Python):
s = input()
if(s.isupper()):
  print("A")
else:
  print("a")

Solution (Python):
a = input()

if a.isupper():
    print("A")
else:
    print("a")

Solution (Python):
letter = input()
ans = "a"
if(letter==letter.upper()):
  ans = "A"
print(ans)

Solution (Python):

a = input()
if a.isupper():
    print('A')
else:
    print('a')

Solution (Python):
a = input()
print("A" if a.isupper() else "a")

Solution (Python):
s = str(input())
if s.isupper():
  print("A")
else :
  print("a")

Solution (Python):
a=input()
if str.isupper(a):
    print("A")
else:
    print("a")

Solution (Python):
from string import ascii_uppercase
x = input()
print('A' if x in ascii_uppercase else 'a')

Solution (Python):
a = str(input())
if a.isupper():
    print("A")
else:
    print("a")

Solution (Python):
N = input()

if N.isupper() == True:
    print('A')
else:
    print('a')

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


a1 = input()[:-1]

big = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
ans = 'A' if a1 in big else 'a'

print(ans)

Solution (Python):
S = input()
if S.isupper():
    print('A')
else:
    print('a')

Solution (Python):
c = input()

if c.isupper():
    print('A')
else :
    print('a')

Solution (Python):
alpha = input()

oomozi = [chr(ord('A') + i) for i in range(26)]

for i in oomozi:
  if alpha == i:
    print('A')
    break
else:
  print('a')

Solution (Python):
alpha = str(input())

small = ['a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z']


if alpha in small:
    print('a')
else:
    print('A')

Solution (Python):
alpha = input()

ABC = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
abc = "abcdefghijklmnopqrstuvwxyz"

if alpha in ABC:
  print("A")
else:
  print("a")

Solution (Python):
t = input()
if(t.islower()):
  print('a')
else:
  print('A')

Solution (Python):
s = input()
 
if s.islower():
  print('a')
else:
  print('A')

Solution (Python):
import sys

sys.setrecursionlimit(10**7)
def I(): return int(sys.stdin.readline().rstrip())
def LI(): return list(map(int,sys.stdin.readline().rstrip().split()))  
def LI2(): return list(map(int,sys.stdin.readline().rstrip()))  
def S(): return sys.stdin.readline().rstrip()
def LS(): return list(sys.stdin.readline().rstrip().split())  
def LS2(): return list(sys.stdin.readline().rstrip())  

s = S()

if s == s.upper():
    print('A')
else:
    print('a')

Solution (Python):
x = input()
ord_x = ord(x)
if(ord_x >= 65) and (ord_x <= 90):
	print("A")
else:
	print("a")

Solution (Python):
alpha = str(input())
lower = [chr(i) for i in range(97, 97+26)]

if alpha in lower:
    print('a')
else:
    print('A')

Solution (Python):
a = input()
print ("a" if a in [chr(i) for i in range(97, 97+26)] else "A")

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

if a.isupper()==True:
    print("A")

else:
    print("a")

Solution (Python):
import re

Input = input()
if re.match('[a-z]', Input):
    print('a')
else:
     print('A')

Solution (Python):
a=input()
if a.isalpha():
    if a.isupper():
        print('A')
    elif a.islower():
        print('a')

Solution (Python):
import re
S = input()
if re.match(r"[A-Z]",S):
    print("A")
else:
    print("a")

Solution (Python):
import re
a = input()
content_lower = r'[a-z]'
content_upper = r'[A-Z]'

if(re.match(content_lower, a)):
  print('a')
elif(re.match(content_upper, a)):
  print('A')

Solution (Python):
α=input()
i=α.isupper()
if i==True:
    print("A")
else:
    print("a")

Solution (Python):
a=input()
b=["A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P","Q","R","S","T","U","V","W","X","Y","Z"]
c=["a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z"]
t=0
for i in range(26):
    if a==b[i]:
        t+=1
if t==1:
    print("A")
else:
    print("a")

Solution (Python):
string = input()

a = ord('a')
z = ord('z')
small = [i for i in range(a,z+1)]
A = ord('A')
Z = ord('Z')
big = [i for i in range(A,Z+1)]

if ord(string) in small:
    print('a')
else:
    print('A')

Solution (Python):
import re
x=input()
if re.fullmatch("[A-Z]",x):
    print("A")
if re.fullmatch("[a-z]",x):
    print("a")

Solution (Python):
a = input()
 
if a.islower():
  print('a')
else:
  print('A')

Solution (Python):
val = input()
if val.lower() == val:
  print("a")
else:
  print("A")

Solution (Python):
a = input()
ALP ='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
alp ='abcdefghijklmnopqrstuvwxyz'

if a in ALP:
    print('A')
elif a in alp:
    print('a')

Solution (Python):
import sys
input=sys.stdin.readline
sys.setrecursionlimit(10 ** 8)
from itertools import accumulate
from itertools import permutations
from itertools import combinations
from collections import defaultdict
from collections import Counter
import fractions
import math
from collections import deque
from bisect import bisect_left
from bisect import bisect_right
from bisect import insort_left
import itertools
from heapq import heapify
from heapq import heappop
from heapq import heappush
import heapq
from copy import deepcopy
from decimal import Decimal
alf = list("abcdefghijklmnopqrstuvwxyz")
ALF = list("ABCDEFGHIJKLMNOPQRSTUVWXYZ")

INF = float("inf")


c = input()[:-1]

n = ord(c)

if 97 <= n:
    print("a")
else:
    print("A")

Solution (Python):
x = input()
if x.isupper():
    print("A")
else:
    print("a")

Solution (Python):
s = input()
if s.islower():
    print("a")
else:
    print("A")

Solution (Python):
a = input()
B = ["A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P","Q", "R","S","T","U","V","W","X","Y","Z"]
b = ["a","b", "c","d","e", "f","g", "h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z"]
if a in B:
    print("A")
else:
    print("a")

Solution (Python):
import re

a = input()
  
if re.match('[a-z]', a):
   print('a')
elif re.match('[A-Z]', a):
   print('A')

Solution (Python):

def main(T):
    if T.lower() == T:
        return "a"
    else:
        return "A"


T = input()
print(main(T))

Solution (Python):
i= input()
print('A' if (ord(i)>64 and ord(i)<91) else 'a')

Solution (Python):
import string
A = input()

if A in string.ascii_lowercase:
  print("a")
elif A in string.ascii_uppercase:
  print("A")

Solution (Python):
a=input()
if ord(a)>=97 and ord(a)<=122:
    print("a")
else:
    print("A")

Solution (Python):
n = input()

if n.islower() :
  print('a')
  
else:
  print('A')

Solution (Python):
def main():
    import sys
    sys.setrecursionlimit(10**9)
    input = sys.stdin.readline

    a = input()[:-1]

    if ord('a') <= ord(a) <= ord('z'):
        print('a')
    else:
        print('A')
        

main()

Solution (Python):
Alphabet = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"

input_data = input()

if input_data in Alphabet:
    print("A")
else:
    print("a")

Solution (Python):
a = str(input())
b = a.upper()
if(a==b):
  print("A")
else:
  print("a")

Solution (Python):
n=input()
if n.isupper():
    print('A')
else:
    print('a')

Solution (Python):

A_in = input()

if A_in.islower():
    print("a")
else:
    print("A")

Solution (Python):
A = input()
if A.islower() == False:
    print("A")
else:
    print("a")

Solution (Python):
a = input()
if a.isupper():
  print("A")
else:
  print("a")

Solution (Python):
_in = input()

result = _in.isupper()

if result:
  print('A')
else:
  print('a')

Solution (Python):
x=input()
if x.isupper():
	print("A")
else:
	print("a")

Solution (Python):
a = input()
if a.islower() ==True:
    print("a")
else:
    print("A")

Solution (Python):
x = input()

if x.isupper():
  print("A")
else:
  print('a')

Solution (Python):
n=input()
if n.isupper():
  print('A')
else:
  print('a')

Solution (Python):


def main():
    import re
    
    char = input()

    if re.match('[A-Z]', char):
        print('A')
    elif re.match('[a-z]', char):
        print('a')


if __name__ == '__main__':
    main()

Solution (Python):
a = input()
if a.isupper():
  print("A")
else:
  print("a")

Solution (Python):
aa = input()

alpha = 'a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r, s, t, u,v,w,x,y,z'
alpha.split(',')

print('a' if aa in alpha else 'A')

Solution (Python):
import string
ALPHABET = str(input())
if ALPHABET in string.ascii_lowercase:
    print("a")
elif ALPHABET in string.ascii_uppercase:
    print("A")

Solution (Python):
char = input()

print('a') if char.lower() == char else print('A')

Solution (Python):
a = input()
if a.isupper():
    print("A")
else :
    print("a")

Solution (Python):
def main():
    n = input()
    lit = n.lower()
    if lit == n:
        print('a')
    else:
        print('A')

if __name__ == '__main__':
    main()

Solution (Python):


import sys































def main():
    mod = 1000000007                
    inf = float('inf')              
    
    sys.setrecursionlimit(10**6)    
    def input(): return sys.stdin.readline().rstrip()
    def ii():    return int(input())
    def isp():   return input().split()
    def mi():    return map(int, input().split())
    def mi_0():  return map(lambda x: int(x)-1, input().split())
    def lmi():   return list(map(int, input().split()))
    def lmi_0(): return list(map(lambda x: int(x)-1, input().split()))
    def li():    return list(input())
    
    
    s = input()
    print('A') if s.isupper() else print('a')


if __name__ == "__main__":
    main()

Solution (Python):
n = str(input())
m = [chr(i) for i in range(65, 65+26)]

if n in m :  
    print('A')  
else :           
    print('a')