show capital letters in small & small in capital

 

show capital letters in small & small in capital

 

#include<stdio.h>

int main()

{

    char a[100];

    int i,c=0;

    scanf("%s",a);

   for(i=0;a[i]!='\0';i++)

   {

      if(a[i]>=65&&a[i]<=90)

      {

          a[i]=a[i]+32;

      }

      else

      {

          a[i]=a[i]-32;

      }

   }

    printf("%s",a);

    return 0;

}