s=input()
new_str=""
for i in range (len(s)):
if s[i].isupper():
new_str+=s[i].lower()
elif s[i].islower():
new_str+=s[i].upper()
else:
new_str+=s[i]
print(new_str)
str_swapcase = "what was that about?".swapcase()
print(str_swapcase)# Python program to swap two variables
x = 5
y = 10
# To take inputs from the user
#x = input('Enter value of x: ')
#y = input('Enter value of y: ')
# create a temporary variable and swap the values
temp = x
x = y
y = temp
print('The value of x after swapping: {}'.format(x))
print('The value of y after swapping: {}'.format(y))def swap0(s1, s2):
assert type(s1) == list and type(s2) == list
tmp = s1[:]
s1[:] = s2
s2[:] = tmp
# However, the easier and better way to do a swap in Python is simply:
s1, s2 = s2, s1# swapcase() method
string = "thE big BROWN FoX JuMPeD oVEr thE LAZY Dog"
print(string.swapcase())
>>> THe BIG brown fOx jUmpEd OveR THe lazy dOG
t = "Mr.Brown"
nt = t.swapcase()
print(nt)