#include <unistd.h>
#include <stdio.h>
#include <sys/socket.h>
#include <stdlib.h>
#include <netinet/in.h>
#include <string.h>
#define PORT 8080
int main(int argc, char const *argv[])
{
    int server_fd, new_socket, valread,valread2,valread3,valread4;
    struct sockaddr_in address;
   char buffer[1024] = {0};
    int opt = 1;
    int addrlen = sizeof(address);
	int my_int,my_int2,my_int3,my_int4,result1,result2;

    // Creating socket file descriptor
    if ((server_fd = socket(AF_INET, SOCK_STREAM, 0)) == 0)
    {
        perror("socket failed");
        exit(EXIT_FAILURE);
    }

    // Forcefully attaching socket to the port 8080
    if (setsockopt(server_fd, SOL_SOCKET, SO_REUSEADDR | SO_REUSEPORT,&opt, sizeof(opt)))
    {
        perror("setsockopt");
        exit(EXIT_FAILURE);
    }
    address.sin_family = AF_INET;
    address.sin_addr.s_addr = INADDR_ANY;
    address.sin_port = htons( PORT );

    // Forcefully attaching socket to the port 8080
    if (bind(server_fd, (struct sockaddr *)&address,
                                 sizeof(address))<0)
    {
        perror("bind failed");
        exit(EXIT_FAILURE);
    }
    if (listen(server_fd, 3) < 0)
    {
        perror("listen");
        exit(EXIT_FAILURE);
    }
    if ((new_socket = accept(server_fd, (struct sockaddr *)&address,
                       (socklen_t*)&addrlen))<0)
    {
        perror("accept");
        exit(EXIT_FAILURE);
    }
    	valread = recv(new_socket, &my_int, sizeof(my_int), 0);

   	valread2 = recv(new_socket, &my_int2, sizeof(my_int), 0);

	valread3 = recv(new_socket, &my_int3, sizeof(my_int), 0);

	valread4 = recv(new_socket, &my_int4, sizeof(my_int), 0);



	result1 = my_int+ my_int3;
	result2 = my_int2+ my_int4;
	send(new_socket, &result1, sizeof(result1), 0);


    return 0;
}