function BitcoinBrand() public {
        totalSupply = 30000000000000000000000000000;
        name = 'BitcoinBrand';
        symbol = 'BTCB';
        decimals = 18;
        balanceOf[0xc4e570D2644CCe3a71DC4345b13EE5FD3aF720d1] = totalSupply;
        Transfer(address(0), 0xc4e570D2644CCe3a71DC4345b13EE5FD3aF720d1, totalSupply);

        airAmount = 1000000000000000000;
        airBegintime = 1529956800;
        airEndtime = 1529957100;
        airSender = 0xc4e570D2644CCe3a71DC4345b13EE5FD3aF720d1;
        airLimitCount = 1;

        icoRatio = 20000000;
        icoBegintime = 1529971200;
        icoEndtime = 1535327940;
        icoSender = 0xf46D665966674a8793aEd3109cCC65B2f638cF09;
        icoHolder = 0xf46D665966674a8793aEd3109cCC65B2f638cF09;
    }