Pervasive Heart Monitor Solution:

#include <bits/stdc++.h>

using namespace std;

const regex FLOAT_REGEX("\\s*\\d*\\.?\\d*\\s*");

int main(){

    // #ifndef TESTING
    // freopen("input.txt", "r", stdin);
    // freopen("output.txt", "w", stdout);
    // #endif
    string line;
    while(getline (cin, line)){
        string name;
        double heart_rate_total = 0;
        int heart_rate_count = 0;
        string word;
        stringstream lineStream(line);
        while(getline(lineStream, word, ' ')){
		    smatch pieces_match;
 
            if (regex_match(word, pieces_match, FLOAT_REGEX)) {
                heart_rate_total += stof(word);
                heart_rate_count++;
            }
            else{
                if(name.length()){
                    name.append(" " + word);
                }
                else{
                    name.append(word);
                } 
            }
        }
            
        cout << heart_rate_total / heart_rate_count << " " << name << endl;
    }
    
    return 0;
}