# sWAP cASE

### Problem Statement :

You are given a string and your task is to swap cases. In other words, convert all lowercase letters to uppercase letters and vice versa.

For Example:

Www.HackerRankSolution.in → wWW.hACKERrANKsOLUTION.IN
Pythonist 2 → pYTHONIST 2

Input Format:
A single line containing a string S.

Constraints:
0<len(S)<=1000

Output Format:
Print the modified string S.

### Solution :

Solution in C :

def swap_case(s):
case_change=[]
for i in range(len(s)):
if (s[i].isupper())==True:
case_change.append(s[i].lower())
elif (s[i].islower()==True):
case_change.append(s[i].upper())
else:
case_change.append(s[i])
stri=''
return stri.join(case_change)

if __name__ == '__main__':
s = input()
result = swap_case(s)
print(result)

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