Youtube Watch Later Converter

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

bool isTimestamp(string S){
    bool numOnly=true;
    for(char x:S)
        if(x<'0' || x>'9')
            if(x!=':')
                numOnly=false;

    return S.find(":") != string::npos && numOnly;
}
void solve(){
    while(true){
        string line;
        getline(cin,line);
        if(isTimestamp(line)){
            string videoTime = line;
            getline(cin,line);//"NOW PLAYING"
            getline(cin,line);
            string videoTitle = "\"" + line + "\"";
            getline(cin,line);
            string videoCreator = "\"" + line + "\"";
            cout << videoTime << "," << videoTitle << "," << videoCreator << '\n';
        }
        else if(line.size()){
            string videoTitle = "\"" + line + "\"";
            getline(cin,line);
            string videoCreator = "\"" + line + "\"";
            cout << "" << "," << videoTitle << "," << videoCreator << '\n';
        }
    }
}

int main(){
    freopen("tmp.in","r",stdin);
    freopen("tmp.out","w",stdout);
    solve();
}