#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>
#include <string.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <sys/socket.h>
#include <limits.h>
#include <netdb.h>


enum
{
    MAX_NAME_SIZE = 2000
};


int main() {
    char host[MAX_NAME_SIZE], service[MAX_NAME_SIZE];
    while (scanf("%s %s", host, service) != EOF) {
        struct addrinfo *infoptr;
        struct addrinfo hints = { .ai_family = AF_INET, .ai_socktype = SOCK_STREAM };

        int err = getaddrinfo(host, service, &hints, &infoptr);
        if (err) {
            printf("%s\n", gai_strerror(err));
            fflush(stdout);
        } else {
            struct sockaddr_in* min_saddr = NULL;
            unsigned long int min_local_bytes = ULONG_MAX;

            struct addrinfo *p;
            for(p = infoptr; p != NULL; p = p->ai_next) {
                struct sockaddr_in* saddr = (struct sockaddr_in*)p->ai_addr;
                if (min_local_bytes >= ntohl(saddr->sin_addr.s_addr)) {
                    min_saddr = saddr;
                    min_local_bytes = ntohl(saddr->sin_addr.s_addr);
                }
            }

            printf("%s:%hu\n", inet_ntoa(min_saddr->sin_addr), ntohs(min_saddr->sin_port));
            fflush(stdout);
            freeaddrinfo(infoptr);
        }
    }

    return 0;
}