Q. Change in alphabetic case ?

THE OUTPUT WOULD BE

#include<stdio.h>
#include<conio.h>
  void main( )
  { clrscr( );
char ch;
printf("Enter an aphabet=");
scanf("%c",&ch);
if(ch>=65&&ch<=90)
{ ch=ch+32;
               printf("\nLower case=%c",ch);
}
else
{ ch=ch-32;
               printf("\nUpper case=%c",ch);
}
getch( );

  }