#include<cstdio>

 #include<cstring>

 #include<string>

 #include<iostream>

 #include<map>

 #include<algorithm>

 using namespace std;

 char s[];

 int main(){

    //freopen("sb.txt","r",stdin);

    long long cnt=;

    map<string,int>q;

    while(gets(s))

    {

        cnt++;

        if(q.find(s)==q.end())

        {

            q[s]=;

        }

        else q[s]++;

    }

    map<string,int>::const_iterator inter=q.begin();

    while(inter!=q.end())

    {

        cout<<inter->first;

        printf(" %.4lf\n",inter->second*100.0/cnt);

        inter++;

    }

    return ;

 }