/*
 * Program to convert lowercase to uppercase, as many lines as
 * desired.
 */
#include <stdio.h>
#include <ctype.h>

int main(void) {
	printf("enter some lines of text, control-D to end\n");
	int ch;
	while ((ch = getchar()) != EOF) {
		if (islower(ch)) {
			putchar(toupper(ch));
		} 
		else {
			putchar(ch);
		}
	}
	printf("the end!\n");;
	return 0;
}