Here you know how to convert a character into it's ASCII value.

# A program that read any character  and display ASCII value

1.  #include<stdio.h> 
2.  #include<conio.h> 
3.   
4.  void main() 
5.  { 
6.     char n; 
7.   
8.     clrscr(); 
9.     printf("Enter any character: "); 
10.    scanf("%c",&n); 
11.  
12.    printf("%d",n); 
13.    getch(); 
14. }