#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <string.h>

int decode_mac(int mac[6], const char *macstr) {
    return sscanf(macstr, "%x:%x:%x:%x:%x:%x", mac, mac + 1, mac + 2,
                  mac + 3, mac + 4, mac + 5) == 6;
}

int mkname_unknown(char *name, const char *ipstr) {
    int ip_lastpart = 0;
    
    if (sscanf(ipstr, "192.168.0.%d", &ip_lastpart) != 1)
        return 0;
    
    sprintf(name, "u-%d", ip_lastpart);
    return 1;
}

void name_tolower(char *name) {
    while (*name != 0) {
        *name = tolower(*name);
        name++;
    }
}

void convert_eui64(int eui64[8], const int mac[6]) {
    eui64[0] = mac[0] ^ 0x02;
    eui64[1] = mac[1];
    eui64[2] = mac[2];
    eui64[3] = 0xff;
    eui64[4] = 0xfe;
    eui64[5] = mac[3];
    eui64[6] = mac[4];
    eui64[7] = mac[5];
}

void format_ipv6fwd(char *ipv6addr, const int mac[6]) {
    int eui64[8];
    convert_eui64(eui64, mac);
    snprintf(ipv6addr, 64, "2002:54f8:d15f:0000:%02x%02x:%02x%02x:%02x%02x:%02x%02x",
            eui64[0], eui64[1], eui64[2], eui64[3], eui64[4],
            eui64[5], eui64[6], eui64[7]);
}

void format_ipv6rvs(char *ipv6addr, const char *fwd) {
    const char *p = fwd + strlen(fwd);
    
    while (p >= fwd) {
        if (isalnum(*p)) {
            *(ipv6addr++) = *p;
            *(ipv6addr++) = '.';
        }
        p--;
    }
    
    sprintf(ipv6addr, "ip6.arpa.");
}

int main() {
    char macstr[20] = {0};
    char ipstr[20] = {0};
    int mac[6] = {0};
    char name[64] = {0};
    char ipv6fwd[64] = {0};
    char ipv6rvs[128] = {0};
    char domain[128] = {0};
    
    while (! feof(stdin)) {
        if (scanf("%*d %17s %15s %63s %*s", macstr, ipstr, name) != 3) {
            if (!feof(stdin))
                fprintf(stderr, "Parsing error, last read %s\n", macstr);
            break;
        }
        
        if (!decode_mac(mac, macstr)) {
            fprintf(stderr, "MAC decode failed for %s\n", macstr);
            continue;
        }
        
        if (name[0] == '*') {
            if (!mkname_unknown(name, ipstr)) {
                fprintf(stderr, "Couldn't make name for %s\n", macstr);
                continue;
            }
        }
        
        name_tolower(name);
        
        format_ipv6fwd(ipv6fwd, mac);
        format_ipv6rvs(ipv6rvs, ipv6fwd);
        snprintf(domain, 128, "%s.intra.aimonen.fi.", name);
        
        printf("%s AAAA %s\n", domain, ipv6fwd);
        printf("%s PTR %s\n", ipv6rvs, domain);
        printf("\n");
    }
    
    return EXIT_SUCCESS;
}