/*
Programmer:     Greg Perkins
   Program:     caps.c
     Class:     CS 73  C/UNIX
       Due:     19 February 1998

This program accepts input from standard I/O and returns output to
standard I/O.  The program converts all lowercase alphabetic letters
to uppercase.  It does this using only bitwise operators to narrow
the range of characters that are modified down to only the lowercase
letters.  This way, NO other characters are modified.
*/

#include <stdio.h>

int main()
{
	int ch;

	while ((ch = getchar()) != EOF)
	{
		if ((ch & 0xE0) == 0x60)
			if (((ch & 0x1F) >= 0x01) && ((ch & 0x1F) <= 0x1A))
				ch &= (~0x20);
		putchar(ch);
	}

	return (0);
}