#include <stdio.h>
#include <stdlib.h>
#include <time.h>

int main(void) {
	srand(time(NULL)); //only do this once
	for(int i =0;i<25;i++)
		printf("%c", (rand()%(90-65))+65); //65 is ASCII for capital A, 90 is ASCII for capital Z
	return 0;
}