#include <stdlib.h>
#include <ctype.h>
#include <time.h>
#include <sys/types.h>
#include <sys/uio.h>
#include <unistd.h>

#define LEET 3
char leet[26][LEET] = { "a4A","8Bb","c(C","d6D","e3E","fFf","g9G","hHh",
  "i|I","JjJ","kKk","lL1","mMm","nNn","o0O","pPp","qQq","r2R","s5$",
  "t7T","uUu","vVv","wWw","XxX","yYy","zZz" };

int main(void) {
  char b;

  srand(time(0)*getpid());

  while (read(0, &b, 1))
    if (tolower(b) >= 'a' && tolower(b) <= 'z')
      write(1, &leet[tolower(b)-'a'][rand()%LEET], 1);
    else write(1, &b, 1);

  return 0;
}