#include<bits/stdc++.h>
#define enld '\n'
#define rep(i,n) for(int i=0; i<(n); i++)
using namespace std;
using ll = long long;
using P = pair<int,int>;
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#pragma GCC optimize("Ofast")
constexpr ll INF = 1e18;
constexpr int inf = 1e9;
constexpr ll mod = 1000000007;
constexpr ll mod2 = 998244353;
const double PI = 3.1415926535897932384626433832795028841971;
const int dx[4] = {1, 0, -1, 0};
const int dy[4] = {0, 1, 0, -1};
template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; }
template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; }
// ---------------------------------------------------------------------------
 
int main(){
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    vector<pair<string,int>> str;
    string S;
    while(cin >> S){
        int d;
        cin >> d;
        str.push_back(make_pair(S,d));
    }
    sort(str.begin(),str.end());
    int N = str.size();
    for(int i=0; i<N; i++){
        cout << str[i].first << enld;
        cout << str[i].second;
        while(i+1<N and str[i].first == str[i+1].first){
            i++;
            cout << " " << str[i].second;
        }
        cout << enld;
    }
    return 0;
}
