Problem:
Toggling Cases

Write a program which converts uppercase/lowercase letters to lowercase/uppercase for a given string.

Input

A string is given in a line.

Output

Print the converted string in a line. Note that you do not need to convert any characters other than alphabetical letters.

Constraints

The length of the input string < 1200

Sample Input

fAIR, LATER, OCCASIONALLY CLOUDY.

Sample Output

Fair, later, occasionally cloudy.

Solution in JAVA (judge verdict: Accepted)

//8-A
import java.util.Scanner;

class Main {
    public static void main(String [] args){
    	
    	Scanner sc = new Scanner(System.in);

        String n = sc.nextLine();
        
        int num = n.length();
        
        for( int i = 0 ; i < num ; i++ ){
        	
        	if(Character.isLowerCase(n.charAt(i))){
        		
                System.out.print(Character.toUpperCase(n.charAt(i)));
                
            }else if(Character.isUpperCase(n.charAt(i))){
            	
                System.out.print(Character.toLowerCase(n.charAt(i)));
                
            }/*else if( n.charAt(i) == ' '){
            	
            	System.out.print(' ');
            	
            }*/else{
            	
                System.out.print(n.charAt(i));
                
            }
        	
        }
        
        System.out.println();
    }
}