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

int main(int argc, char* argv[]){
    int t[2];
    char p;
    int nbchar = 0;
    pipe(t);
    while (write(t[1],&p,sizeof(char)) > 0){
        nbchar ++;
        printf("%d\n",nbchar);
    }
    close(t[0]);
    close(t[1]);
    return 0;
}