k=2
s='middle-Outz'

arr = list(s)
finalarr=[]

addingvar = k % 26

for i in arr:
#special characters
    if (ord(i) < 65 or (ord(i) > 90 and ord(i) < 97) or ord(i) > 122):
        finalarr.append(i)
        continue

    if(ord(i) >= 65 and ord(i) <= 90):

        if ((ord(i) + addingvar) > 122 or ((ord(i) + addingvar) > 90 and (ord(i) + addingvar) < 97) or (ord(i) + addingvar) > 90):
            temp = (ord(i)+addingvar) - 26
            finalarr.append(chr(temp))
            continue
            finalarr.append(chr(ord(i) + addingvar))

    if(ord(i) >= 97 and ord(i) <= 122):

        if ((ord(i) + addingvar) > 122 or ((ord(i) + addingvar) > 90 and (ord(i) + addingvar) < 97)):
            temp = (ord(i) + addingvar) - 26
            finalarr.append(chr(temp))
            continue
    finalarr.append(chr(ord(i)+addingvar))

print("".join(finalarr))