s=raw_input()
def ToUpper(s):
  t=""
  d=""
  for i in range(len(s)):
      b="qwertyuiopasdfghjklzxcvbnm"
      f="QWERTYUIOPASDFGHJKLZXCVBNM"
      for j in range(len(b)):
         for l in range(len(f)):
            if j==l and s[i]==b[j]:
                 t=f[l]
            if j==l and s[i]==f[l]:
                 t=b[j]
            if s[i]!=b[j] and s[i]!=f[l]:
                 t=s[i]
      d=d+t           
  return d
print ToUpper(s)
raw_input() 

def symbolToUpper(symbol):
    b = "qwertyuiopasdfghjklzxcvbnm"
    f = "QWERTYUIOPASDFGHJKLZXCVBNM"
    if not symbol in b:
        return symbol
    return f[b.index(symbol)]
def toUpper(phrase):
    return "".join(map(symbolToUpper, s))
s = raw_input("enter word: ")
print toUpper(s)

s="jfk"
def ToUpper(c):
    b = "qwertyuiopasdfghjklzxcvbnm"
    f = "QWERTYUIOPASDFGHJKLZXCVBNM"
    for i in range(len(b)):
         for j in range(len(f)):
            if i==j and c==b[i]:
                c=f[j]
    return c
def ToLower(c):
    b = "qwertyuiopasdfghjklzxcvbnm"
    f = "QWERTYUIOPASDFGHJKLZXCVBNM"
    for i in range(len(b)):
         for j in range(len(f)):
            if i==j and c==f[i]:
                c=b[j]
def ToUpperPhrase(s):
   d=""
   for l in range(len(s)):
       c=s[l]
       return ToUpper(c)
       d=d+c
   return d
print ToUpperPhrase(s)
raw_input()

for i in range(len(b)):