#include
#include
void main()
{
char ch;
printf("Enter the character = ");
scanf("%c",&ch);
if((ch>='a')&&ch<='z')
{
ch=ch-32;
printf("Upper case is = %c",ch);
}
else
{
ch=ch+32;
printf("Lower case is = %c",ch);
}
getch();
}
