#include<stdio.h>
#include<conio.h>
void
main()
{
char ch;
clrscr();
printf("\n enter the value ch");
scanf("\n %c",&ch);
printf("\n the ascii value of character
is %d",ch);
printf("\n the next ascii character is
%c",ch+1);
printf("\n the privious ascii character
is %c",ch-1);
getch();
}
/*output
enter the value ch c
the ascii value of character is 99
the next ascii character is d
the privious ascii character is b*/