s = 'abcdefghijklmnopqrstuvwxyz'
s2 = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
write = 'my_new.txt'
files = "text.txt"
my_files = open(files, mode='r', encoding='1251')
my_files2 = open(write, mode='w', encoding='1251')
for  line in (my_files):
    my_files = line.split()
    for r in sorted(my_files):
        if r<s2 or r<s:
                print(r)
                my_files2.write(r+' ')
    my_files2.write('\n')