CurrencyPair pair = pairs.get(new Random().nextInt(pairs.size()));
System.out.println("Market data for " + pair + ":");
String pairString = BittrexUtils.toPairString(pair);
BittrexTicker ticker = marketDataService.getBittrexTicker(pairString);
System.out.println(ticker);
ArrayList<BittrexTicker> tickers = marketDataService.getBittrexTickers();
System.out.println(tickers);