#include<stdio.h>
#include<unistd.h>
#include<ctype.h>

int main(){
	char space[4096];
	ssize_t readlen;
	readlen = read(0, space, 4096);

	// Capitalize the letters in space
	int pos = 0;
	while(pos < readlen){
		if(isalpha(space[pos]))    // Don't need a colon here
			space[pos] = toupper(space[pos]);
		pos++; // Same as pos += 1
	}

	write(2, "Hello World\n", 12);
	write(1, space, readlen);
	return 0;
}