fin = open('DATA1.txt','r')
lines = fin.readlines()
fin.close()
out = []
fout = open('OUT1.txt','w')
print lines
for item in lines:
    line = ''
    line2 = []
    for l in item:
        if l.isalpha() and l != 'M':
                l = chr(((ord(l)-64+13)%26)+64)

        elif l == 'M':
            l = 'Z'
        line2.append(l)
        print line2
    for i in line2:
        fout.write(i)