# import sys
def getPassWord(line):
result = ''
for c in line:
if c.isalpha():
if c.islower():
result += chr((ord(c)-97 + 1)%26 + 97)
else:
result += chr((ord(c)-65 + 1)%26 + 65)
else:
result += c
return result
# for line in sys.stdin:
password = getPassWord(input())
print(password)