# ChapterCharacters/alphabet2.py
"""
ABCDEFGHIJKLMNOPQRSTUVWXYZ
abcdefghijklmnopqrstuvwxyz
abcdefghijklmnopqrstuvwxy
abcdefghijklmnopqrstuvwxy
ZYXWVUTSRQPONMLKJIHGFEDCBA
"""
def main():
    # print the uppercase letters
    for i in range( 26 ):
        print(chr( 65+i),end="")
    print()

    #print the lowercase letters
    for i in range( 26 ):
        print(chr( 97+i),end="")
    print()

    #print the lowercase letters
    for i in range(ord('a'),ord('z')):
        print(chr(i),end="")
    print()

    #print the upper and lowercase letters
    for i in range(ord('a'),ord('z')):
        print(chr(i),end="")
    print()

     #print the alphabet reversed in upper letters
    for i in range(ord('Z'),ord('A')-1,-1):
        print(chr(i),end="")
    print()

main()