#include <stdio.h>
#include<string.h>
int main() {
    int n,i,j;
    char s[100];
    scanf("%[^\n]s",s);
    n=strlen(s);
    for(i=0;i<n;i++){
        if(s[i]>='A' && 'Z'>=s[i]){
            s[i]=s[i]+32;
        }
        else{
           s[i]=s[i]-32; 
        }
    }
    printf("%s",s);
    return 0;
}

Embed on website

To embed this project on your website, copy the following code and paste it into your website's HTML: