2.3.cpp

#include<bits/stdc++.h>
using namespace std;

vector<string> ans;

void linenumber(vector<string> inp){
    int start = 1;
    for(auto s : inp){
        string out = to_string(start);
        out += ") ";
        bool f = 0;
        for(int i = 0; i < (int)s.size(); i++){
            out += s[i];
        }
        ans.push_back(out);
        start++;
    }
}

int main(){
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
    string s;
    bool single = 0, multi = 0;
    vector<string> inp;
    while(getline(cin,s)){
        inp.push_back(s);
    }

    linenumber(inp);
    for(auto i : ans){
        cout << i << '\n';
    }
}