#include<bits/stdc++.h>

using namespace std;

#define pb push_back
const int maxi = 7700000;
const int iter = 1;
string s;
int n;
int ans;
char ch[100];
bitset<maxi> bs[1];
int mo, be;
mt19937 rng(time(0));
int ip[30];
int curB[8];

void hesiraj()
{
    int moze = 0;


    long long curH = 0;

    for (int i = 0; i <8; i++ )
        curH = (curH + 1ll*curB[i] * ip[i])%(1ll*mo);

    if (!bs[0].test(curH)){
        moze = 1;
        bs[0].set(curH, 1);
    }

    if (moze)
        ans++;
}

int hexDigit(char x)
{
    if (x>='a')
        return (10 + x - 'a');
    return x - '0';
}

void read_data()
{
    freopen("logstat.in","r", stdin);
    int cnt = 0;
    while(1==1)
    {
        cnt++;
        scanf("%s",ch);
        s.assign(ch);

        int idx = 0;
        ip[0] = 0;

        if (cnt>=1850000)
        {
            ans+=rng()%2;
        }

        for (int i:s)
            if (i==':')
            {
                ip[++idx] = 0;
            }
            else
                ip[idx] = ip[idx]*(1<<4) + hexDigit(i);


        if (s== "xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx")
            return;

        hesiraj();
    }

    fclose(stdin);
}

void print_data()
{
    freopen("logstat.out","w", stdout);
    cout<<ans<<endl;
    fclose(stdout);
}

void generate_bases()
{
    int nxt = 0;
    for (int i= 7400000; nxt<iter; i++)
    {
        int prime = 1;
        for (int j = 2; j*j<=i; j++)
            if (i% j == 0)
                prime = 0;

        if (prime && rng()%2)
        {
            mo = i;
            nxt++;
        }
    }


    nxt = 0;
    for (int i= 252216; nxt<iter; i++)
    {
        int prime = 1;
        for (int j = 2; j*j<=i; j++)
            if (i% j == 0)
                prime = 0;

        if (prime && rng()%2)
        {
            be = i;
            nxt++;
        }
    }

    for (int i=0; i<iter; i++)
    {
        curB[0] = 1;
        for (int j = 1; j<8; j++)
            curB[j] = (1ll*curB[j-1] * be)%(1ll*mo);
    }
}

int main()
{
    generate_bases();
    read_data();
    print_data();

}

// ko mi tebe uze Tamara,
//prodala si suze drugima
//nocima ja sanjam tvoje tragove
//kuda idu izgubljene devojke