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Problem D
Inverse Case

Accepted submissions to this problem will be granted a score of 100

Write a program that, given a string $s$ , inverts the case of every character. That is to say, if a character is in upper case, turn it into lowercase and if it is in lower case, turn it into upper case.

Input

Input consists of one line, the string $s$ , which satisifes $1 \leq | s | \leq 10^{3}$ , where $| s |$ denotes the length of the string $s$ . Each character of the string, except for the trailing newline character, will have an ASCII value between 32 and 126, inclusive.

Output

Output consists of one line, containing the case-inversion of $s$ .

Sample Input 1	Sample Output 1
Sir Henry Morton Stanley, I presume?	sIR hENRY mORTON sTANLEY, i PRESUME?

Sample Input 2	Sample Output 2
Dr. Livingstone, I presume?	dR. lIVINGSTONE, i PRESUME?

Sample Input 3	Sample Output 3
a	A

Sample Input 4	Sample Output 4
CrAzY StRiNg	cRaZy sTrInG

Attachments

starter_code.py tests.py

Problem DInverse Case

Input

Output

Problem D
Inverse Case