What is the output of this program?

#include<stdio.h>
#include<sys/types.h>
#include<sys/un.h>
#include<sys/socket.h>
#include<errno.h>
 
int main()
{
    struct sockaddr_un addr;
    int fd;
    fd = socket(AF_UNIX,SOCK_STREAM,0);
    if (fd == -1)
        perror("socket");
    addr.sun_family = AF_UNIX;
    strcpy(addr.sun_path,"demo_sock");
    if (bind(4,(struct sockaddr*)&addr,sizeof(addr)) == -1)
        printf("Example\n");
    return 0;
}