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()

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

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

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

Solution (Python):
a = ord(input())
if ord("a") <= a <= ord("z"):
    print("a")
else:
    print("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):
α = input()
if α.islower():
  print("a")
else:
  print("A")

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

Solution (Python):
if __name__ == "__main__":
    alpha = input()

    if alpha in ['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']:
        print('A')
    else:
        print('a')

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

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

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

Solution (Python):
a = input()
print("A" if a in "ABCDEFGHIJKLMNOPQRSTUVWXYZ" else "a")

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

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

Solution (Python):
alpha = input()
if ord(alpha) <= 90:
    print('A')
else:
    print('a')

Solution (Python):
x = input()

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

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

Solution (Python):
x = input()
y = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'

if x in y:
  print('A')
else:
  print('a')

Solution (Python):
A=input()

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

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

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

Solution (Python):
a = input()

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

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

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

if a == b :
  print('A')
else :
  print('a')

Solution (Python):
a=input()

b=a.capitalize()

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

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

Solution (Python):
A=input()

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

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

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

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

Solution (Python):
alpha=input()

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

Solution (Python):
c = input()

if c < "a":
  print("A")
else:
  print("a")

Solution (Python):
a=input().strip()
if(a==a.lower()):
  print("a",end="")
else:
  print("A",end="")

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

Solution (Python):
str = input()

if str < 'a':
    print('A')
else:
    print('a')

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

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

Solution (Python):
S = input()
n = ord(S)
print('A' if n < 97 else 'a')

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

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

Solution (Python):
a = input()

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

Solution (Python):
a = ord(input().rstrip())

if a < 97:
  print('A')
else:
  print('a')
  

'''  

ord(A)=65
ord(Z)=90
ord(a)=97
ord(z)=122

'''

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

Solution (Python):
a = input()

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

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

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

Solution (Python):
import re
i = str(input())
j = i.islower()

if j == 1:
    o = 'a'
else:
    o = 'A'

print(o)

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

Solution (Python):
A = input()




ans = ''
if A.isupper(): ans = 'A'
else: ans = 'a'

print(ans)

Solution (Python):
A = input()

ans = ''
if A.isupper(): ans = 'A'
else: ans = 'a'

print(ans)

Solution (Python):
str = input()

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

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

Solution (Python):
a = input()

if str.isupper(a):
    print('A')
elif str.islower(a):
    print('a')

Solution (Python):
alpha = input()

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

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

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

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

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

Solution (Python):
N = input()
A, a = 0, 0
for i in range(65, 91):
  if i==ord(N):
    A += 1
for i in range(97, 123):
  if i==ord(N):
    a += 1
if A==1:
  print('A')
if a==1:
  print('a')

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

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

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

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

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

Solution (Python):


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

Solution (Python):
a = input()

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

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

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

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

Solution (Python):

import sys
import numpy as np




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

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

Solution (Python):
x = input()

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

Solution (Python):
alp = 'abcdefghijklmnopqrstuvwxyz'

if input() in alp:
    print('a')
else:
    print('A')

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

Solution (Python):
a = input()
if a in "QWERTYUIOPLKJHGFDSAZXCVBNM":
  print("A")
else:
  print("a")

Solution (Python):

import sys
from itertools import chain





def solve(c):
    if c.lower() == c:
        return 'a'
    else:
        return 'A'

def main():
    c = input()
    answer = solve(c)
    print(answer)

if __name__ == '__main__':
    main()

Solution (Python):
s = input()

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

Solution (Python):
alpha = input()

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

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

Solution (Python):
a=input()
if('a'<=a and 'z'>=a):
    print('a')
else:
    print('A')

Solution (Python):
cc = input().rstrip()
r = 'a' if ord('a') <= ord(cc) and ord(cc) <= ord('z') else 'A'
print(r)

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

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

Solution (Python):
a = input()

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

Solution (Python):

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

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):
xxx = str(input())

if str.islower(xxx) == True:
  print("a")
else:
  print("A")

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

Solution (Python):
A = input()
if A.isupper():
  print('A')
else: 
  print('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):
ch = input()
if ch == 'a' or ch == 'b' or ch == 'c' or ch == 'd' or ch == 'e' or ch == 'f' or ch == 'g' or ch == 'h':
  print('a')
elif ch == 'i' or ch == 'j' or ch == 'k' or ch == 'l' or ch == 'm' or ch == 'n' or ch == 'o':
  print('a')
elif ch == 'p' or ch == 'q' or ch == 'r' or ch == 's' or ch == 't' or ch == 'u' or ch == 'v':
  print('a')
elif ch == 'w' or ch == 'x' or ch == 'y' or ch == 'z':
  print('a')
else:
 print('A')

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

Solution (Python):

alphabet=input()
if(alphabet.islower()):
    print("a")
elif(alphabet.isupper()):
    print("A")

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

Solution (Python):
import sys
import numpy as np
read = sys.stdin.buffer.read
readline = sys.stdin.buffer.readline
readlines = sys.stdin.buffer.readlines

aa = str(input())

tar = ord(aa)
if (tar <= 91):
    print('A')
else:
    print('a')

Solution (Python):

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

Solution (Python):
α = input()

small = "abcdefghijklmnopqrstuvwxyz"
ans = "A"
for i in range(len(small)):
    if α == small[i]:
        ans = "a"

print(ans)

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

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

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

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

Solution (Python):
s = input()

if ord(s) >= 65 and ord(s) <= 90 : 
    print("A")
elif ord(s) >= 97 and ord(s) <= 122 : 
    print("a")

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

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

Solution (Python):
x = input()

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

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

Solution (Python):
s = input()

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

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

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

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

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

Solution (Python):



def next_line():
    return input()


def next_int():
    return int(input())


def next_int_array_one_line():
    return list(map(int, input().split()))


def next_int_array_multi_lines(size):
    return [int(input()) for _ in range(size)]


def next_str_array(size):
    return [input() for _ in range(size)]


def main():
    a = next_line()
    if 'A' <= a[0] and a[0] <= 'Z':
        print("A")
    else:
        print("a")


if __name__ == '__main__':
    main()

Solution (Python):
n = input()
if n >= 'A' and n <= 'Z':
    print('A')
elif n >= 'a' and n <= 'z':
    print('a')

Solution (Python):
a=input()

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

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

Solution (Python):
a=input()
import string
list1=list(string.ascii_lowercase)
if a in list1:
  print('a')
else:
  print('A')

Solution (Python):
x = input()
judge_x = x.isupper()

if judge_x == True:
    print('A')
else:
    print('a')

Solution (Python):
a = input()

alp = [chr(i) for i in range(ord('a'),ord('z')+1)]

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

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

Solution (Python):
s = input()

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

Solution (Python):
s=input()

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

Solution (Python):
a = input()

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

Solution (Python):
alpha = input()

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

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

Solution (Python):
t="qwertyuioplkjhgfdsazxcvbnm"
T="QWERTYUIOPLKJHGFDSAZXCVBNM"
a=str(input())
if a in t:
  print('a')
else:
  print('A')

Solution (Python):
A = input()

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

Solution (Python):
letter = input()

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

Solution (Python):
letter = input()

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

Solution (Python):
letter = input()

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

Solution (Python):
user_input = input()
ascci_value = ord(user_input)
if ascci_value in range(97, 123):
    print('a')
else:
    print('A')

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

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

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

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

if __name__ == "__main__":
    solve()

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

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

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

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

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

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

Solution (Python):

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

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

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

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

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

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

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

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

Solution (Python):
alpha = input()

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

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

Solution (Python):
a = input()
strlist = ['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 strlist:
  print('a')
else:
  print('A')

Solution (Python):
lst1 = 'abcdefghijklmnopqrstyvwxyz'

s = str(input())
if s in lst1:
    print('a')
else:
    print('A')

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

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

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

Solution (Python):


from sys import stdin
from keyword import iskeyword

if __name__ == "__main__":
    a = stdin.readline().rstrip()
    if a.islower():
        print("a")
    else:
        print("A")

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

Solution (Python):

a = input()

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

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

Solution (Python):
ALPHA = input()

print("a" if ord(ALPHA) >= 97 else "A")

Solution (Python):
import string

a=string.ascii_lowercase
A=string.ascii_uppercase

n=input()

if n in a :
    print("a")
else :
    print("A")

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

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

Solution (Python):
a = str(input())
x = "QWERTYUIOPASDFGHJKLZXCVBNM"
if(a in x):
  print("A")
else:
  print("a")

Solution (Python):
import sys
input = sys.stdin.readline
ins = lambda: input().rstrip()
ini = lambda: int(input().rstrip())
inm = lambda: map(int, input().split())
inl = lambda: list(map(int, input().split()))
 
s = ins()
print("A" if s.isupper() else "a")

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

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

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

Solution (Python):
alpha = input()

Big = ["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 Big:
    print("A")
else:
    print("a")

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

Solution (Python):
S = input()

if str.islower(S):
    print('a')
else:
    print('A')
exit()

Solution (Python):
alpha = str(input())
if alpha in "abcdefghijklmnopqrstuvwxyz":
    print("a")
else:
    print("A")

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

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

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

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

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

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

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

Solution (Python):
s = input()

print("a" if s.islower() else "A")

Solution (Python):
small = [chr(ord('a') + i) for i in range(26)]

s=input()

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

Solution (Python):
A = [chr(i) for i in range(65,91)]
a = [chr(i) for i in range(97,123)]
if input().strip() in A:
    print("A")
else:
    print("a")

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

Solution (Python):



def main():
    s = input()

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


if __name__ == '__main__':
    main()

Solution (Python):
A = input()

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

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

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

Solution (Python):
alpha = str(input())
if alpha in "abcdefghijklmnopqrstuvwxyz":
    print("a")
else:
    print("A")

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

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

Solution (Python):
c = input()
print("A" if ord("A") <= ord(c) <= ord("Z") else "a")

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

Solution (Python):
alpha = input()

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

Solution (Python):

def main():
    s = input()
    if 97 <= ord(s) <= 122:
        print('a')
    else:
        print('A')


if __name__ == "__main__":
    main()

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

Solution (Python):
a = input()
if "A" <= a <= "Z":
    print("A")
else:
    print("a")

Solution (Python):
get = input()

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

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

Solution (Python):
mozi = input()
kazu = int(ord(mozi))
if 65 <= kazu < 91:
  print('A')
else:
  print('a')

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

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

Solution (Python):
S = input()

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

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

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

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

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

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

Solution (Python):
a = input()

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

Solution (Python):
alpha = input()
if len(alpha) > 1:
    exit()
alpha = ord(alpha)
if alpha >=97 and alpha <= 122:
    print('a')
elif alpha >= 65 and alpha <= 90:
    print('A')
else:
    exit()

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

Solution (Python):
alpha = input()

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

Solution (Python):

s = input()

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

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

Solution (Python):
print('Aa'[input().islower()])

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

Solution (Python):
x=input()
if ((x>='A') and (x<='Z')):
    print('A')
elif (x>='a') and (x<='z'):
    print('a')

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

Solution (Python):

from string import ascii_lowercase as alp
alpha = input()
print(['A', 'a'][alpha in alp])

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

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

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

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

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

Solution (Python):
a=input()
b='abcdefghijklmnopqrstuvwxyz'
for i in range(len(b)):
    if b[i]==a:
        print("a")
        exit()
print("A")

Solution (Python):
a1 = input()
if a1.isupper()==True:
    print('A')
else:
    print('a')

Solution (Python):
a = input()

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

Solution (Python):

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

Solution (Python):
a = input()

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

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

Solution (Python):

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

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

Solution (Python):
al = ord(input())

if al >= ord("a"):
    print("a")
else:
    print("A")

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

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

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


if __name__ == '__main__':
    Qa()

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

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

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

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

Solution (Python):
a = input()

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

Solution (Python):
a = input()

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

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

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

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

Solution (Python):
alpha=input()

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

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

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

if "A" <= st <= "Z":
  ans = "A"
elif "a" <= st <= "z":
  ans = "a"
print(ans)

Solution (Python):
alpha=input()

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

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

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

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

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

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

Solution (Python):
print("aA"[input()<"a"])

Solution (Python):
print(chr(65+32*(ord(input())>96)))

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

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

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

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

if(re.match("[A-Z]", a)):
    print("A")
else:
    print("a")

Solution (Python):
print("A" if input() in "ABCDEFGHIJKLMNOPQRSTUVWXYZ" else "a")

Solution (Python):
a=input()
if a.islower():
    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):
import re

n = input()

flag = re.match(r"[a-z]",n)
if flag != None:
    print("a")
else:
    print("A")

Solution (Python):
s = input()

output = s.islower()

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

Solution (Python):
string = input()

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

Solution (Python):
l=input()

if l.lower()==l:
    print('a')
else:
    print('A')

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

Solution (Python):
a = input()

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

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

Solution (Python):
S = input()

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

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

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

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

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

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

Solution (Python):
letter = input()

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

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

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

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

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

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


if __name__ == '__main__':
    main()

Solution (Python):
a = input()
if 'A' <= a <= 'Z':
    print('A')
elif 'a' <= a <= 'z':
    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):
alf=input()
if alf.isupper():
  print('A')
else:
  print('a')

Solution (Python):
s = input()

if 'A'<=s[0]<='Z' :
    print("A")
elif 'a'<=s[0]<='z' :
    print("a")

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

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

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

Solution (Python):
import re


a = str(input())
m = re.match("[A-Z]", a)
if m:
    print("A")
else:
    print("a")

Solution (Python):
from sys import stdin
input = stdin.readline
 
a = input().rstrip()
 
if a.isupper():
  print("A")
else:
  print("a")

Solution (Python):
from sys import stdin
input = stdin.readline
 
a = input().rstrip()
 
if a.isupper():
  print("A")
else:
  print("a")

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

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

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

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

Solution (Python):
def main(istr, ostr):
    s = istr.readline().strip()
    if 'a' <= s and s <= 'z':
        print('a', file=ostr)
    else:
        print('A', file=ostr)


if __name__ == "__main__":
    import sys

    main(sys.stdin, sys.stdout)

Solution (Python):
a = input()

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

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

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

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

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

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

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

Solution (Python):
import bisect,collections,copy,heapq,itertools,math,string
import numpy as np
from numba import njit
import sys
sys.setrecursionlimit(10**7)

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

a = _S()

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