text: #include <string>
  #include <stdlib.h>
  #include "format.h"
  #include <cstring>
  using std::string;
  
  // INPUT: Long int measuring seconds
  // OUTPUT: HH:MM:SS
  string Format::ElapsedTime(long seconds) {
       int second = 0;
       int minuete = 0;
       int hour = 0;
       second = seconds % 60;
       minuete = seconds / 60;//total number of whole minuetes
       minuete %= 60;
       hour = seconds / 3600;
       std::string out;
       std::string zero{},zero1{},zero2{};
       if(second < 10)
            zero2 = '0';
       if(minuete < 10)
            zero1 = '0';
       if(hour < 10)
            zero = '0';
       out = zero + std::to_string(hour) + ':' + zero1 + std::to_string(minuete) + ':' + zero2 + std::to_string(second); 
       return out;
       }
  